- IB
- Philosophy
The IB Philosophy Key Definitions is a vital reference for IB Philosophy students (both SL and HL), offering a curated collection of critical terminology and phrases aligned with the IB curriculum. Designed to support you in Paper 1, Paper 2, and Paper 3, this resource ensures you have the right language tools at your fingertips.
On this page, you'll find an organized list of essential terms, complete with clear definitions, IB-specific usage, and examiner-focused context that helps you build confidence in understanding and applying subject-specific vocabulary.
With Jojo AI integration, you can reinforce learning through quizzes, contextual examples, or targeted term practice. Perfect for coursework, written assignments, oral exams, or exam preparation, RevisionDojo's IB Philosophy Key Definitions equips you with precise language knowledge to excel in IB assessments.
A posteriori
Knowledge that is justified through experience.
A priori knowledge
Knowledge that is justified independently of experience.
Aesthetic experience
Aesthetic experience refers to the unique, often intense, engagement with art, nature, or other objects that evoke a sense of beauty, wonder, or emotional response.
Aesthetic judgement
Aesthetic judgement refers to the evaluation of art and beauty. It involves assessing the qualities of an artwork, such as its form, content, and emotional impact.
Agency
Agency refers to the capacity of an individual to act intentionally and make choices.
Analytic statements
Analytic statements are true by virtue of their meaning. They do not require empirical verification.
Arguments from illusion
Arguments from illusion highlight how our senses can deceive us, casting doubt on the reliability of perception.
Asabiya
Asabiya (العصبية) refers to social cohesion or group solidarity, a central concept in Ibn Khaldun's analysis of the rise and fall of civilizations.
Authenticity
Authenticity is the existentialist ideal of living in accordance with one's true self and values, rather than conforming to external pressures or societal norms.
Authoritarianism and totalitarianism
Authoritarianism and totalitarianism are systems where power is concentrated in a single leader or party, with limited political freedoms.
Autonomy
The ability to make independent choices and govern oneself.
Beauty
Beauty is often seen as a quality that evokes pleasure or admiration. However, philosophers have debated whether beauty is objective (inherent in the object) or subjective (dependent on the observer's perception).
Behaviorism
A school of thought that focuses on observable behavior (comportamiento observable) and environmental influences (influencias ambientales).
Benevolence
God's perfect goodness and moral integrity.
Big Science
Big Science refers to large-scale scientific projects that require significant resources, collaboration, and infrastructure.
Categorical Imperative
A universal moral law that applies to all rational beings.
Causality
Causality is the relationship between cause and effect, where one event (the cause) brings about another event (the effect).
Censorship
Censorship involves the suppression or restriction of information, ideas, or expressions deemed harmful, sensitive, or undesirable.
Civil society
Civil society refers to the network of organizations, institutions, and relationships that exist outside the state and the market.
Civil society
Civil society refers to the network of organizations, associations, and institutions that exist independently of the state and government.
Climate change
Long-term alterations in temperature, precipitation, and weather patterns.
Cognitivism
The view that moral statements express beliefs and can be true or false.
Coherentism
Coherentism rejects the idea of basic beliefs and instead argues that a belief is justified if it coheres with a system of interconnected beliefs.
Compatibilism
Compatibilism is the view that free will and determinism can coexist.
Consciousness
Consciousness is the subjective experience of awareness and perception.
Consciousness
Consciousness is the state of being aware of and able to think about one's own existence, thoughts, and surroundings.
Constitutive values
Values intrinsic to the practice of science, such as accuracy, consistency, and empirical adequacy.
Contextual values
Values external to science, including social, cultural, ethical, and political considerations.
Cosmological argument
A posteriori argument that seeks to prove God's existence by observing the universe and its causes.
Creative license
The freedom artists have to interpret, alter, or invent elements in their work.
Culture
Culture is a complex system of beliefs, values, practices, and symbols shared by a group of people.
Deontological theories
Deontological theories focus on the inherent rightness or wrongness of actions, independent of their consequences.
Depletion of resources
The exhaustion of natural resources due to overconsumption and unsustainable practices.
Determinism
Determinism is the philosophical view that every event is caused by preceding events and conditions, leaving no room for chance or free will.
Distributive justice
Distributive justice refers to the fair allocation of resources, opportunities, and responsibilities within a society.
Dualism
Dualism posits that the mind and body are separate, distinct entities.
Dualism
Emotivism
The view that moral statements express emotions and are not truth-apt.
Empiricism
Argues that knowledge comes from sensory experience.
Epistemology
The study of knowledge, focusing on its nature, sources, and limits.
Existential angst
Existential angst is a profound sense of anxiety or dread arising from the realization of our radical freedom and the responsibility it entails.
Extrinsic value
Extrinsic value is the worth something has because of its utility, function, or relationship to other things. It is valuable as a means to an end.
Foundationalism
Foundationalism is a theory of justification that addresses the regress problem by positing that some beliefs are self-justified or require no further support.
Freedom of information
Freedom of information is the right to access, share, and receive information without unjustified interference.
Government
The government is the set of institutions and individuals that make and enforce laws within a state.
Idealism
Idealism posits that reality is fundamentally mental or spiritual, existing only in the mind.
Incompatibilism
Incompatibilism holds that free will and determinism are fundamentally incompatible.
Induction
Induction is a method of reasoning that involves deriving general principles from specific observations. It is a cornerstone of scientific inquiry, allowing scientists to formulate hypotheses and theories based on empirical data.
Inter-subjectivity
Inter-subjectivity refers to the shared understanding and mutual recognition between individuals.
Intersectionality
Intersectionality is a framework that examines how different forms of oppression (e.g., racism, sexism, homophobia) intersect and compound each other.
Intrinsic value
Intrinsic value refers to the inherent worth of something, independent of its utility or function. It is valuable in itself.
Intuitionism
The belief that moral truths are self-evident and can be known through intuition.
Justification
Justification refers to the reasons or evidence that support a belief, making it rational or reasonable to hold.
Karm
The law of cause and effect governing moral actions.
Language game
A language game is a context or activity in which language is used according to specific rules.
Legitimacy
Legitimacy refers to the acceptance and justification of a government's authority by its citizens and the international community.
Liberty
Liberty refers to the freedom to act, think, or speak without unnecessary constraints.
Marginalization
Marginalization refers to the systematic exclusion or disadvantage of certain groups within a society.
Mind-body problem
The mind-body problem is a central question in philosophy that explores the relationship between the mind (our thoughts, feelings, and consciousness) and the body (our physical form).
Minimal self
The minimal self refers to the immediate, pre-reflective experience of being a subject.
Monarchy
Monarchy is a system where a single ruler, often a king or queen, holds power, typically inherited through a family line.
Monotheism
Belief in a single, all-powerful God.
Moral principles
Moral principles are guidelines or rules that inform our judgments about what is right or wrong.
Moral responsibility
Moral responsibility refers to the obligation to act ethically and the accountability for one's actions.
Moral values
Moral values are the principles or standards that guide our judgments about what is right or wrong, good or bad.
Multi-party democracy
Multi-party democracy is a system where multiple political parties compete for power, allowing for a diverse range of political perspectives.
Muse
A muse is often seen as a source of inspiration for artists, guiding their creative process.
Nation
A nation is a group of people who share a common identity, often based on language, culture, history, or ethnicity.
Naturalism
The view that moral properties are reducible to natural properties (e.g., pleasure, pain).
Negative liberty
Negative liberty is the absence of external constraints or interference. It emphasizes the freedom to act without obstacles imposed by others, particularly the state.
Non-cognitivism
The view that moral statements express emotions or commands and are not truth-apt.
Non-naturalism
The view that moral properties are irreducible and distinct from natural properties.
Norms
Norms are shared expectations or rules that guide behavior within a group or society.
Nyaya philosophy
A school of Hindu philosophy that emphasizes logic and epistemology.
Objectivism
Moral values are independent of individual opinions and have objective validity.
Objectivism
Objectivism asserts that perception provides access to an independent, objective reality.
Oligarchy
Oligarchy is a form of government where power is concentrated in the hands of a small, elite group.
Omnipotence
God's ability to do anything that is logically possible.
Omnipotence paradox
Questions whether an omnipotent being can perform logically impossible actions.
Omniscience
God's ability to know everything — past, present, and future.
One-party democracy
One-party democracy is a system where a single political party dominates the political landscape, often claiming to represent the people's will.
Ontological argument
A priori argument that attempts to prove God's existence through reason alone, without relying on empirical evidence.
Pantheism
Belief that God is identical to the universe and everything in it.
Perception
Perception is the process of acquiring knowledge through the senses. It is the foundation of empiricism, a philosophical view that all knowledge originates from sensory experience.
Personal identity
Personal identity refers to the qualities and characteristics that make an individual unique and distinct from others.
Personhood
Personhood is often linked to agency, as being a person typically implies having the capacity to act intentionally and make choices.
Perspectivism
Perspectivism argues that all knowledge and perception are shaped by specific perspectives, influenced by cultural, historical, and personal factors.
Phenomenalism
Phenomenalism holds that objects are merely collections of sensory experiences or phenomena.
Pollution
The introduction of harmful substances or products into the environment.
Polytheism
Belief in multiple gods, each with distinct roles and attributes.
Positive liberty
Positive liberty is the presence of conditions that enable individuals to achieve their potential. It focuses on the capacity to act in ways that are truly self-determined.
Positivism
Positivism is a philosophical approach that emphasizes empirical observation and logical analysis as the basis of knowledge. It rejects metaphysics and focuses on observable phenomena.
Post-positivism
Post-positivism emerged as a response to the limitations of positivism. It acknowledges the fallibility of scientific knowledge and the role of theoretical frameworks.
Pseudo-problems
Pseudo-problems are questions that cannot be answered because they are based on linguistic confusion.
Rationalism
Emphasizes reason as the primary source of knowledge.
Realism
Realism is the belief that the world exists independently of our perceptions or beliefs.
Reason
Reason is the ability to think logically and draw conclusions from premises. It is central to rationalism, which holds that some knowledge is innate or a priori (independent of experience).
Reduction
Reduction involves explaining complex phenomena in terms of simpler, more fundamental components. It is a common approach in the natural sciences.
Reductive explanations
Reductive explanations attempt to explain complex phenomena by breaking them down into simpler components.
Relativism
Moral values are relative to cultural or societal norms.
Religious experience
Religious experience refers to subjective encounters with the divine or transcendent. These experiences often involve a sense of connection with a higher power, ultimate reality, or spiritual truth.
Religious language
Religious language refers to the words and phrases used to describe, explain, or express beliefs about the divine, sacred, or transcendent.
Religious pluralism
Religious pluralism is the view that multiple religions can offer valid paths to truth or salvation. It contrasts with exclusivism (only one true religion) and inclusivism (one true religion, but others have partial truth).
Retributive justice
Retributive justice focuses on the fair and proportional response to wrongdoing. It is closely related to the concept of punishment, which serves various purposes in society.
Scepticism
Scepticism is a philosophical approach that questions the possibility of certain knowledge. It challenges our assumptions about what we can know and how we can know it.
Scientific anti-realism
Scientific anti-realism challenges the notion that theories describe reality. Instead, it views them as useful tools for organizing observations.
Scientific realism
Scientific realism is the view thatscientific theories describe the world as it truly is, including unobservable entities like electrons or black holes.
Scientific realism
Scientific realism is the view that scientific theories describe the world as it truly is, including unobservable entities like electrons or black holes.
Self-consciousness
Self-consciousness is the awareness of oneself as a distinct, thinking being.
Self-knowledge
Self-knowledge refers to an individual's understanding of their own thoughts, feelings, and beliefs.
Social conditioning
Social conditioning refers to the process by which individuals are shaped by societal norms, values, and expectations.
Social discontent
Social discontent arises when individuals or groups perceive injustices or inequities within a society.
Social institutions
Social institutions are organized systems of norms, values, and practices that shape and regulate human behavior within a society. They provide stability, continuity, and a framework for social interaction.
Social structures
Social structures are the patterns and systems that organize human relationships and interactions.
Solipsism
Solipsism is the philosophical idea that only one's own mind is certain to exist. It raises profound questions about the nature of reality and our ability to know anything beyond our own consciousness.
Species extinction
The permanent loss of species from the planet.
State
A state is a political entity with a defined territory, a permanent population, a government, and the capacity to enter into relations with other states.
State of nature
The state of nature is a hypothetical condition used by philosophers to describe human existence before the formation of organized societies or governments.
Structural violence
Structural violence refers to systemic and institutionalized forms of harm that disproportionately affect marginalized communities.
Subjectivism
Subjectivism holds that perception is inherently tied to the individual's mind, shaped by personal experiences, emotions, and interpretations.
Subjectivism
Moral values are seen as individual preferences or emotions.
Synthetic statements
Synthetic statements are true or false based on empirical evidence. They add new information about the world.
Taste
Taste refers to the ability to judge and appreciate beauty. It involves both emotional and intellectual responses to art.
Teleological argument
The teleological argument (or design argument) posits that the order and complexity of the universe imply the existence of an intelligent designer.
Teleological explanations
Teleological explanations focus on the purpose or end goal of a phenomenon.
Teleological theories
Teleological theories assess the morality of actions based on their consequences or goals.
Testimony
Testimony is the acquisition of knowledge through the reports or statements of others.
The Body Theory
The Body Theory posits that personal identity is based on the continuity of the physical body.
The Bundle Theory
The Bundle Theory, associated with David Hume, argues that personal identity is a collection of perceptions and experiences, without a unifying self.
The narrative self
The narrative self is the constructed identity that emerges from stories we tell about our lives.
The Psychological Continuity Theory
The Psychological Continuity Theory argues that personal identity is based on the continuity of psychological states, such as memories, beliefs, and consciousness.
The Soul Theory
The Soul Theory posits that personal identity is based on the continuity of an immaterial soul.
Theocracy
Theocracy is a system where religious leaders or institutions govern, often based on religious law.
Timelessness
God exists outside of time, unbound by past, present, or future.
Tolerance
Tolerance is the willingness to allow beliefs, practices, or behaviors that one disagrees with or finds objectionable. It is often seen as a virtue in pluralistic societies, promoting peaceful coexistence among diverse groups.
Tribalism
Tribalism refers to governance based on tribal or ethnic affiliations, often seen in societies where traditional structures remain influential.
Truth (the Coherence Theory)
Coherence among a set of beliefs or propositions.
Truth (the Correspondence Theory)
Correspondence between statements and reality.
Truth (the Pragmatic Theory)
Truth is what works or has practical utility in a given context.
Unification
Unification in science refers to the process of combining different theories or explanations into a single, coherent framework. It is often seen as a mark of scientific progress.
Universalism
Some moral values are universal and apply to all humans, regardless of culture.
Utilitarianism
A consequentialist theory that prioritizes maximizing happiness or well-being for the majority.
Verificationism
Verificationism is the view that a statement is meaningful only if it can be empirically verified or is analytically true.
Virtue ethics
Virtue ethics is a moral philosophy that emphasizes the character of the moral agent rather than specific actions or consequences. It asks, "What kind of person should I be?" rather than "What should I do?"