The meaning of ASSUMPTION is a taking to or upon oneself. How to use assumption in a sentence.

ASSUMPTION definition: something taken for granted; a supposition. See examples of assumption used in a sentence.

People tend to make assumptions about you when you have a disability. These calculations are based on the assumption that prices will continue to rise.

Definition of assumption noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you make an assumption that something is true or will happen, you accept that it is true or will happen, often without any real proof. They have taken a wrong turning in their assumption that all men and …

Dec 10, 2025 · assumption (countable and uncountable, plural assumptions) The act of assuming, or taking to or upon oneself; the act of taking up or adopting.

An assumption is something that you assume to be the case, even without proof. For example, people might make the assumption that you're a nerd if you wear glasses, even though that's not true. Or …