Pronunciation: /prɪˈzʌmpʃən/
noun a belief that something is true without having actual proof or evidence
A1 She made the presumption that he would be at the party.
A2 There was a presumption of guilt until proven innocent in the court.
B1 The police officer acted on the presumption that the suspect was armed.
B2 The company's decision was based on the presumption that the market would continue to grow.
C1 His presumption of superiority often rubbed his colleagues the wrong way.
C2 The scientist's groundbreaking theory challenged the long-held presumptions of the scientific community.
adjective presumptuous (showing excessive confidence or boldness)
A1 I made the presumption that the store would be open until 9 pm.
A2 She acted on the presumption that her friend would pick her up from the airport.
B1 The project was completed based on the presumption that all team members would contribute equally.
B2 His presumption of guilt was proven wrong when new evidence came to light.
C1 The lawyer's presumption of innocence for her client was unwavering despite the mounting evidence against him.
C2 The scientist's presumption about the behavior of the new species turned out to be incorrect after further research.
formal The judge reminded the jury to not make any presumption of guilt without sufficient evidence.
informal Don't jump to conclusions without knowing all the facts, it's just a presumption.
slang People always make presumptions about others based on appearances, it's so frustrating.
figurative In the world of business, having a presumption of success can sometimes lead to taking unnecessary risks.
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