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 noun or adjective

Examples of sign up in a Sentence

they both signed up for a Spanish class
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To monitor lesser risk, residents are advised to sign up for county alert systems and to monitor agencies’ social media. Southern California Weather Report, Oc Register, 13 Oct. 2025 Get more Colorado news by signing up for our daily Your Morning Dozen email newsletter. Nick Coltrain, Denver Post, 13 Oct. 2025 Nicole Fallert is a newsletter writer at USA TODAY, sign up for the email here. Nicole Fallert, USA Today, 13 Oct. 2025 Check out our Daily Deals for the best products at the best prices and sign up here to receive the BestReviews weekly newsletter full of shopping inspo and sales. Bestreviews, Mercury News, 13 Oct. 2025 See All Example Sentences for sign up

Word History

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of sign up was in 1875

Browse Nearby Words

Cite this Entry

“Sign up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sign%20up. Accessed 15 Oct. 2025.

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

More from Merriam-Webster on sign up

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!