Sign up and Sign

Sign up verb - Engage by written agreement.

Sign is a synonym for sign up in contribute topic. In some cases you can use "Sign" instead the word "Sign up" as a verb or a noun.

Sign verb - To write one's name on (as a document).

Sign up is a synonym for sign in recruit topic. You can use "Sign up" instead a verb "Sign".

Nearby Words: signify, signed, signature, signing, signboard