“Sign up” vs. “signup”

When we have a button on a website for creating an account, should it say “sign up” or “signup”?

I see “sign up” in most places, but which is the correct one?


It should be sign up, as that is the verb form (see definition 30). Signup (or sign-up) is a noun.

That pattern usually holds: log in (verb) vs. login (noun), sit up (verb) vs. situp (noun), etc.

Source : Link , Question Author : Haralan Dobrev , Answer Author : Daniel

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