sign up

verb

signed up; signing up; signs up

intransitive verb

: to sign one's name (as to a contract) in order to obtain, do, or join something

sign up for insurance

sign up for classes

sign-up

ˈsī-ˌnəp 

noun or adjective

Synonyms

• enlist (in)
• enroll (in)
• enter
• join
• sign on (for)

Examples of sign up in a Sentence

they both signed up for a Spanish class

Recent Examples on the Web

The Environmental Protection Agency (EPA) recommends that residents sign up for air quality email alerts for their ZIP code to stay informed about changing conditions. —Hannah Parry, Newsweek, 11 Dec. 2024

Rather than signing up for every free resource, consider investing in one high-quality program, coach or mentor who aligns with your goals. —Shay Levister, Forbes, 11 Dec. 2024

Popular electronics store Best Buy offers customers the opportunity to sign up for memberships, including a free one, that gives them access to several perks. —Jonathan Limehouse, USA TODAY, 30 Nov. 2024

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories. —Hannah Sacks, People.com, 30 Nov. 2024

Word History

First Known Use

1875, in the meaning defined above

Kids Definition

sign up

verb

(ˈ)sī-ˈnəp

: to sign one's name in order to get, do, or take something

signed up for Spanish

sign-up noun or adjective