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.
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.