Definition of Presupposition

a background belief that is assumed beforehand

Examples of Presupposition in a sentence

The open-minded woman tried to provide new ways of thinking and prove her brother’s presupposition about other races as wrong.  🔊

Our science teacher asks us to prove any presupposition with evidence and support assumed beliefs with facts.  🔊

Because there is no way to justify the presupposition that the vaccine causes autism, doctors are urging people to let go of the unsupported belief.  🔊

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