sign up

Questions about sign up

What does sign up mean?

sign up means "engage by written agreement". That is the primary sense; the word has 2 in total, listed in full on this page.

What is another word for sign up?

Close synonyms include sign, contract, sign on. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is sign up a common word?

sign up is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.