English Dictionary

presupposition

/pɹiː.sʌ.pəˈzɪ.ʃ(ə)n/

noun

An assumption made beforehand; a preliminary conjecture or speculation. / The act of presupposing. / (linguistics) An assumption or belief implicit in an utterance or other use of language.

One presupposition of the theory is that all humans are rational beings.

意味（1）

An assumption made beforehand; a preliminary conjecture or speculation.

He made one cardinal error in his presuppositions about the relation between language and perception, but in this he was far from alone.

意味（2）

The act of presupposing.

意味（3）

(linguistics) An assumption or belief implicit in an utterance or other use of language.

For instance: a verb might convey someone's evaluation of it as a presupposition. To say ‘they deprived him of a visit to his parents’ presupposes that he wanted to visit (vs. ‘spare him a visit...’).