B2 · Upper-Intermediate

Philosophy & Ethics — B2 English Vocabulary

This B2 vocabulary list gathers 50 upper-intermediate English words about philosophy & ethics — truth, morality and the meaning of life. Every word comes with a simple definition, its British-English pronunciation and a natural example sentence, so you learn each one in real context. When you are ready, open the flashcards to practise and remember them for good.

50 wordsBritish pronunciationExample sentencesDefinitionsFree flashcards
  1. ethics/ˈeθ.ɪks/

    The study of what is morally right and wrong.

    “Medical ethics are complex.”

  2. morality/məˈræl.ɪ.ti/

    Beliefs about what is right and wrong behaviour.

    “They debated questions of morality.”

  3. existence/ɪɡˈzɪs.təns/

    The state of being or living.

    “He questioned the meaning of existence.”

  4. reality/riˈæl.ɪ.ti/

    The state of things as they truly are.

    “Dreams blur with reality.”

  5. truth/truːθ/

    That which is true and agrees with facts.

    “Philosophers search for truth.”

  6. doctrine/ˈdɒk.trɪn/

    A set of beliefs held by a group.

    “He rejected the old doctrine.”

  7. free will/ˌfriː ˈwɪl/

    The ability to make your own choices freely.

    “Do humans have free will?”

  8. soul/səʊl/

    The spiritual part of a person believed to live on.

    “Some believe in an immortal soul.”

  9. metaphysics/ˌmet.əˈfɪz.ɪks/

    The study of the nature of existence and reality.

    “Metaphysics studies the nature of being.”

  10. philosophy/fɪˈlɒs.ə.fi/

    The study of knowledge, reality and existence.

    “She studies ancient philosophy.”

  11. conviction/kənˈvɪk.ʃən/

    A firmly held belief.

    “He spoke with deep conviction.”

  12. paradox/ˈpær.ə.dɒks/

    A statement that seems to contradict itself.

    “It is a fascinating paradox.”

  13. abstraction/æbˈstræk.ʃən/

    An idea not connected to a physical object.

    “Justice is an abstraction.”

  14. absolute/ˈæb.sə.luːt/

    Complete and not limited by anything.

    “There is no absolute truth.”

  15. immoral/ɪˈmɒr.əl/

    Morally wrong.

    “Lying is immoral.”

  16. righteous/ˈraɪ.tʃəs/

    Morally right and good.

    “He felt righteous anger.”

  17. mortality/mɔːˈtæl.ɪ.ti/

    The state of being able to die.

    “The poem reflects on mortality.”

  18. purpose/ˈpɜː.pəs/

    The reason for which something exists.

    “She searched for a sense of purpose.”

  19. deception/dɪˈsep.ʃən/

    The act of making someone believe something untrue.

    “The plot involves deception.”

  20. enlightenment/ɪnˈlaɪt.ən.mənt/

    A state of deep understanding and wisdom.

    “He sought spiritual enlightenment.”

  21. scepticism/ˈskep.tɪ.sɪ.zəm/

    An attitude of doubting what is claimed.

    “She viewed the claim with scepticism.”

  22. dogma/ˈdɒɡ.mə/

    A belief accepted without question.

    “He questioned religious dogma.”

  23. humanity/hjuːˈmæn.ɪ.ti/

    All human beings, or the quality of being humane.

    “He has faith in humanity.”

  24. intellect/ˈɪn.tə.lekt/

    The power of the mind to think and understand.

    “She has a sharp intellect.”

  25. ideal/aɪˈdɪəl/

    A perfect standard that is hard to reach.

    “Freedom is a noble ideal.”

  26. fate/feɪt/

    A power believed to control future events.

    “He believes in fate.”

  27. destiny/ˈdes.tɪ.ni/

    The events that will happen to a person in future.

    “She felt it was her destiny.”

  28. contemplate/ˈkɒn.təm.pleɪt/

    To think deeply about something.

    “He likes to contemplate life.”

  29. introspection/ˌɪn.trəˈspek.ʃən/

    The examining of your own thoughts and feelings.

    “Solitude allows introspection.”

  30. faith/feɪθ/

    Strong belief, especially without proof.

    “Her faith never wavered.”

  31. deduction/dɪˈdʌk.ʃən/

    A conclusion reached by logical reasoning.

    “He solved it by deduction.”

  32. speculation/ˌspek.jəˈleɪ.ʃən/

    The forming of ideas without firm evidence.

    “It is pure speculation.”

  33. humane/hjuːˈmeɪn/

    Kind and caring towards others.

    “It is a humane policy.”

  34. illusion/ɪˈluː.ʒən/

    A false idea or appearance.

    “Happiness was just an illusion.”

  35. void/vɔɪd/

    A completely empty space.

    “He felt an empty void.”

  36. profound/prəˈfaʊnd/

    Very deep in meaning or feeling.

    “It is a profound idea.”

  37. atheism/ˈeɪ.θi.ɪ.zəm/

    The belief that there is no god.

    “He openly defends atheism.”

  38. sacred/ˈseɪ.krɪd/

    Holy and deserving great respect.

    “The text is sacred to them.”

  39. altruism/ˈæl.tru.ɪ.zəm/

    Unselfish concern for the welfare of others.

    “Pure altruism is rare.”

  40. paradoxical/ˌpær.əˈdɒk.sɪ.kəl/

    Seeming to contradict itself.

    “It seems paradoxical but it is true.”

  41. transcend/trænˈsend/

    To go beyond the usual limits of something.

    “Great art can transcend time.”

  42. spiritual/ˈspɪr.ɪ.tʃu.əl/

    Relating to the soul rather than the body.

    “She had a spiritual experience.”

  43. intuitive/ɪnˈtjuː.ɪ.tɪv/

    Based on feelings rather than reasoning.

    “He has an intuitive grasp of it.”

  44. conscientious/ˌkɒn.ʃiˈen.ʃəs/

    Careful to do what is right.

    “She is a conscientious worker.”

  45. contradiction/ˌkɒn.trəˈdɪk.ʃən/

    A statement that opposes another.

    “His story contains a clear contradiction.”

  46. metaphysical/ˌmet.əˈfɪz.ɪ.kəl/

    Relating to the nature of existence.

    “It is a metaphysical question.”

  47. reflective/rɪˈflek.tɪv/

    Thinking deeply and quietly.

    “He is in a reflective mood.”

  48. fundamental/ˌfʌn.dəˈmen.təl/

    Forming a necessary base; essential.

    “It is a fundamental truth.”

  49. mortal/ˈmɔː.təl/

    Certain to die at some time; human.

    “All humans are mortal.”

  50. philosopher/fɪˈlɒs.ə.fə/

    A person who studies philosophy.

    “The philosopher wrote many books.”

Using philosophy & ethics words in English

Philosophical vocabulary has one grammatical quirk worth settling first: ethics, like physics, ends in s and takes a singular verb when it names the discipline. The page also covers conviction, a word that means both a firmly held belief and a criminal record, and paradox, which is regularly used where contradiction is meant.

What to watch out for

Words learners mix up

Philosophical vocabulary looks abstract and is in fact quite exact. These clusters separate the ways of thinking inwardly, the ways of holding a belief, and the two words English uses for a life already written.

Four kinds of thinking about it

WordWhat it actually meansIn a sentence
contemplateTo consider something deeply and at length. Also plainly means to consider doing something: contemplating a move.He sat contemplating the question for an hour.
introspectionExamining your own thoughts and feelings. The object is always yourself, which is what distinguishes it.A long period of introspection after the loss.
reflectiveGiven to thinking carefully about experience. Describes a person or a piece of writing, and is approving.A reflective essay on her own practice.
speculationForming ideas without firm evidence. Neutral in philosophy, mildly critical elsewhere.Pure speculation, but worth pursuing.
intuitiveKnown immediately, without conscious reasoning. Also, of a design, easy to grasp without instruction.An intuitive grasp of the problem.

Only introspection is necessarily about the self. The trap is speculation, which in finance means risky investment and in philosophy means reasoning beyond the evidence — the two senses share a page in the dictionary and nothing else.

How firmly is the belief held — and by whom?

WordWhat it actually meansIn a sentence
doctrineA set of principles taught by a church, party or school of thought. Neutral: it names the content.The doctrine was formalised in the fourth century.
dogmaThe same content asserted as beyond question. Neutral inside a religion, critical everywhere else.Economic dogma that survived the evidence.
faithBelief held without or beyond proof. Uncountable for the attitude, countable for a religion: the world’s major faiths.A matter of faith rather than argument.
scepticismThe disposition to doubt claims until they are supported. A method, not a belief.Healthy scepticism about the figures.
atheismThe position that there is no god. A specific claim, and distinct from simply lacking belief.He wrote openly about his atheism.

British English spells it scepticism; American English writes skepticism. The word to place carefully is dogma — describing someone’s view as dogma is an argument against them, not a description of what they think, so in an essay it needs to be earned.

Fate, destiny and the argument between them

WordWhat it actually meansIn a sentence
fateWhat will happen and cannot be avoided. Usually neutral or ominous, and often personified.He accepted his fate without complaint.
destinyA future you are meant for. Warmer and often positive — something to be fulfilled rather than suffered.She believed it was her destiny to teach.
free willThe capacity to choose otherwise. Two words, uncountable, and it is the position both of the above deny.The debate turns on whether free will exists.
mortalityThe condition of being subject to death. Also, in statistics, the death rate: infant mortality.The illness forced him to confront his own mortality.

The distinction between fate and destiny is one of temperature rather than logic — you suffer a fate and fulfil a destiny, though both deny that things could have gone otherwise. That denial is what free will stands against, and the opposing position is determinism.

Collocations that sound natural

Abstract nouns are the hardest to use idiomatically, because there is nothing concrete to picture. These pairings are the frames the words actually appear in.

See the full B2 collocations list →

Formal, neutral or informal?

Philosophy lends English many of its most abstract words, and several arrive with a second, looser life in ordinary speech. Two pairs on this list are near-homonyms with quite different meanings.

Sentences to try

Four frames from philosophical writing. Check the verb agreement in the first one carefully.

Questions about philosophy & ethics vocabulary

Is "ethics" singular or plural?

Both, depending on the meaning. As the name of the academic discipline it takes a singular verb: Ethics is a branch of philosophy. As a word for somebody’s actual moral standards it takes a plural verb: Her ethics are beyond question. The same split governs politics, statistics and economics — the subject is singular, the instances are plural. Philosophy, metaphysics and logic are singular in all uses.

What does "conviction" mean in English?

It has two distinct senses. The first is a firmly held belief or the strength of feeling behind it: a woman of strong political convictions, he spoke without conviction. The second is legal: a formal court decision that somebody is guilty of a crime: a conviction for theft, a spent conviction. Context always separates them. The related verb convict belongs only to the legal sense, while convince and convinced belong to the first.

What is a paradox?

A paradox is a statement or situation that appears to contradict itself but may nevertheless be true, or that produces an absurd result from reasoning that seems valid at every step. The classic example is the sentence This statement is false. It is not the same as a plain contradiction, where two claims simply cannot both be true and nothing further is revealed. In casual usage paradox often means merely a surprising combination, as in the paradox of choice, which is looser than the philosophical sense.

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