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Verb: sign up
  1. Engage by written agreement
    "They signed up two new pitchers for the next season"
    - sign, contract, sign on
     
  2. Join a club, an activity, etc. with the intention to join or participate
    "Sign up for yoga classes"

Derived forms: signing up, signed up, signs up

Type of: employ, engage, fall in, get together, hire, join

Nearest

sign in
sign industry
sign language
sign manual
sign of the cross
sign of the zodiac
sign off
sign on
sign over
sign painter
sign up
signage
signal
signal box
signal caller
signal detection
signal fire
signal flag
signal level
signal light
signal tower