sign-up

Pluralsign-ups

1. 1
   nouncountable

   The act of registering or enrolling, as for a commercial service or a committee.

   The streaming service reported a record number of new sign-ups after the finale.

   The sign-up sheet for the planning committee is posted outside the main office.

   Similarregistration, enrollment

   Oppositecancellation

   Note

   The noun is built from the verb sign up, and the hyphen is what marks it: people sign up, and every new member counts as a sign-up. Its plural puts the s at the end, sign-ups, where the verb puts it on sign (she signs up). A cancellation undoes one, or, for a committee seat, a resignation.

2. 2
   verb · sign upintransitive

   To add one's own name to the list of participants in something, including an amateur team but not a professional one.

   More than forty volunteers signed up to help with the beach cleanup.

   If you want to play in the fall league, sign up at the rec center by Friday.

   Similarregister, enroll, book

   Oppositecancel

   Note

   Sign in is its easily confused neighbor: you sign up once, to join a team, a list or a service, and sign in each time you arrive or log on. Sport draws a line of its own, since an amateur signs up for the soccer team while a professional signs with a club.

3. 3
   verb · sign uptransitive

   To add someone's name to the list of participants in something.

   Parents can sign up their children for the after-school program online.

   The club signed up a dozen new members at the street fair.

   Similarregister, enroll

   Note

   The person being enrolled can come between the two words or after them: we signed Bob up, parents sign up their children. A pronoun has to sit in the middle, so it is sign him up, never sign up him, and what they are joining usually follows for: signed Bob up for kitchen cleanup duty.

4. 4
   verb · sign upintransitive

   To agree to buy a product or service.

   Thousands of customers signed up for the new streaming plan in its first week.

   Before you sign up for a meal kit service, check how easy it is to cancel.

   Similarsubscribe

   Oppositeunsubscribe

5. 5
   verb · sign upintransitive

   To join the armed forces by enlisting.

   Her son has signed up with the Marines and leaves for basic training in June.

   Army recruiters hope more high school graduates will sign up this year.

   Similarenlist

   Note

   It is the everyday word for enlisting, and it often needs nothing after it: in "He's just signed up!" the context supplies the armed forces. When more is said, it can take with, as in sign up with the navy, or for, as in sign up for four years.

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