Englishfor English speakers
certain
Adjective
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If you are certain of something, you believe it to be true without doubt.
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If something is certain, it will happen without doubt.
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If you make certain of something, you check that it is true or correct.
certain
Determiner
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Used to talk about groups or individuals without saying exactly which one(s).
Certain problems can be solved with very simple math.
Her job gave her a certain freedom.
Certain of the members did not agree.
sentence
Noun
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In grammar, a sentence is a group of words that follow normal grammar rules, and that, in writing, begins with a capital letter and ends with a period '.', question mark '?', or exclamation mark '!'. Usually a sentence has a subject, verb, and object.
The first sentence in the Jewish holy book is, "In the beginning God created the heaven and the earth."
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In law, a sentence is the punishment that a judge gives to a criminal.
He received a 15-year sentence for the murder of his friend.
sentence
Verb
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If a judge sentences someone, they decide on a punishment for a crime.
He was sentenced to 15 years in jail for the murder of his friend.