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Possible Duplicate:
“Yes”, “Yeah”, “Yep”

What is the difference between yup and yes? Most of the time I use yup instead of yes.

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marked as duplicate by FumbleFingers, Daniel, Alenanno, RegDwigнt Jul 23 '11 at 15:11

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Voting to close on the grounds any cursory search will reveal that "yup" (like "yep", "yeah", etc.) is slang/informal. Is it meaningful to ask the difference between using a slang word and the equivalent "standard" form? – FumbleFingers Jul 23 '11 at 14:02
up vote 3 down vote accepted

Yup and its more common variant Yep are informal ways of saying Yes.

The only difference is one of formality. Use Yup only in informal (casual) settings; not, say, in a business meeting.

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Yup is the slang (informal) alternative to Yes. You shouldn't use it in formal cases.

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