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| sir [ stressed sur, unstressed sər ] (plural sirs) |
noun |
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| Definition: |
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1. polite form of address to man: a form of address to a man often used in speech as a sign of respect
 Excuse me, sir, do you know what time it is?
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2. U.K. way to address man teacher: a form of address to a man teacher, mainly used by his students
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| [13th century. Variant of sire] |
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yes or no sir used to emphasize emphatic confirmation or denial of something
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