The word "supposition" in English means: An idea that you believe to be true, even though you don't have proof., Something that you think is likely to be true, based on the information that you have..
The phonetic transcription of "supposition" is /ˌsʌpəˈzɪʃən/ in British English and /ˌsʌpəˈzɪʃən/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "supposition": assumption, hypothesis, guess, theory, belief, conjecture.
Example usage of "supposition": "My supposition is they will arrive late.". More examples on the page.