Sign Up — synonyms, definition

1. sign up (Verb)

commission conscript contract draft employ engage enlist mobilise mobilize muster recruit register retain secure sign sign on take on

sign up (Verb) — Engage by written agreement. ex. "They signed up two new pitchers for the next season"

sign up (Verb) — Join a club, an activity, etc. with the intention to join or participate. ex. "Sign up for yoga classes"

employ engage fall in get together hire join contract out enlist