Standard Lemma guide

supposition

noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˌsʌpəˈzɪʃən/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: S AH2 P AH0 Z IH1 SH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Something that is supposed; an assumption made to account for known facts, conjecture.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The act or an instance of supposing.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the cognitive process of supposing

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: supposal

Antonyms: none provided

Broader terms: conjecture

Narrower terms: presupposition

4

noun

Meaning 4

a hypothesis that is taken for granted

Definition source: Princeton WordNet 3.0

Examples

  • any society is built upon certain assumptions

Meaning relationships

Synonyms: assumption, supposal

Antonyms: none provided

Broader terms: hypothesis, possibility, theory

Narrower terms: conclusion, basis, base, foundation, fundament, groundwork, cornerstone, given, presumption, precondition, basic assumption, constatation, self-evident truth

5

noun

Meaning 5

a message expressing an opinion based on incomplete evidence

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: guess, conjecture, surmise, surmisal, speculation, hypothesis

Antonyms: none provided

Broader terms: opinion, view

Narrower terms: divination

History

Etymology

From Middle English supposicioun, from Anglo-Norman supposicion, from Latin suppositiō, suppositiōnem (“supposition”), from sub- (“under”) + positiō, positiōnem (“position; theme”), from positus (“position”), from the perfect passive participle of pōnō, pōnere (“put, place”).

Across languages

Translations

48 source translations are retained for this English entry.

  • Arabic: اِفْتِرَاض (iftirāḍ) — assumption
  • Arabic: فَرْضِيَّة (farḍiyya) — assumption
  • Azerbaijani: fərziyyə — assumption
  • Azerbaijani: təxmin — assumption
  • Azerbaijani: güman — assumption
  • Azerbaijani: zənn — assumption
  • Azerbaijani: ehtimal — assumption
  • Azerbaijani: fərz — assumption
  • Belarusian: прыпушчэ́нне (prypuščénnje) — assumption
  • Bulgarian: предположе́ние (predpoložénie) — assumption
  • Catalan: suposició — assumption
  • Chinese Mandarin: 假定 (jiǎdìng) — assumption
  • Chinese Mandarin: 設想 /设想 (shèxiǎng) — assumption
  • Czech: předpoklad — assumption
  • Dutch: veronderstelling — assumption
  • Esperanto: supozo — assumption
  • Finnish: oletus — assumption
  • French: hypothèse — assumption
  • French: supposition — assumption
  • French: conjecture — assumption
  • German: Annahme — assumption
  • German: Supposition — assumption
  • Greek: υπόθεση (ypóthesi) — assumption
  • Ancient Greek: ὑπόληψις (hupólēpsis) — assumption
  • Hungarian: feltevés — assumption
  • Irish: glacan — assumption
  • Irish: dóigh — assumption
  • Italian: supposizione — assumption
  • Italian: presupposto — assumption
  • Japanese: 想像 (sōzō) — assumption
  • Japanese: 推測 (suisoku) — assumption
  • Korean: 상상 (sangsang) — assumption
  • Korean: 추측 (chucheuk) — assumption
  • Māori: pūmāramarama — assumption
  • Polish: założenie — assumption
  • Portuguese: suposição — assumption
  • Romanian: supoziție — assumption
  • Romanian: presupunere — assumption
  • Russian: предположе́ние (predpoložénije) — assumption
  • Slovak: predpoklad — assumption
  • Spanish: suposición — assumption
  • Swedish: supposition — assumption
  • Ottoman Turkish: تقدیر (takdir) — assumption
  • Ukrainian: припу́щення (prypúščennja) — assumption
  • German: Annehmen — the act or an instance of supposing
  • Irish: forshuíomh — the act or an instance of supposing
  • Irish: toimhde — the act or an instance of supposing
  • Romanian: presupunere — the act or an instance of supposing