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If I asked you to checkout a restaurant, or whatever, how would I spell that? I thought "checkout" would do. Others said no, "check out" is correct (two words). A dictionary has it hyphenated. So, any input would be appreciated.

Bob
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Hi, Curious Bob - welcome to the forum! I would say "check out" (two words) when using it as a verb, and "checkout" or "check-out" when using it as an adjective. "Hey, check out the cute new librarian at the check-out desk!" I'm not sure of the "rule," but the two-word form seems more appropriate to me because you could insert a direct object in the middle if you wanted -- "Check it out."
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Curious_bobIf I asked you to checkout a restaurant, or whatever, how would I spell that? I thought "checkout" would do. Others said no, "check out" is correct (two words). A dictionary has it hyphenated. So, any input would be appreciated.

Bob
It's a two-part phrasal verb, Bob. So, check out is correct.

Is it - reserve for checkout or reserve for check-out?