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English definition of “presume”

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presume

verb  /prɪˈzum/ us  

presume verb (BELIEVE)

[T] to believe something to be true because it is likely, although not certain: [+ (that) clause] I presume (that) they’re not coming, since they haven’t replied to the invitation. People accused of a crime are presumed innocent until proven guilty.

presume verb (BE RUDE)

[I] to be rude by doing something you know that you do not have a right to do: [+ to infinitive] How can you presume to criticize me when you did the same thing yourself?
presumably
adverb [not gradable]  /prɪˈzu·mə·bli/ us  
Presumably they can afford to buy an apartment, or they wouldn’t be looking.
(Definition of presume from the Cambridge Academic Content Dictionary © Cambridge University Press)
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