sign on

verb

signed on; signing on; signs on
Synonyms of sign onnext

intransitive verb

1
: to engage oneself by or as if by a signature
signed on to the new project
2
: to announce the start of broadcasting for the day
sign-on
ˈsī-ˌnȯn How to pronounce sign on (audio)
-ˌnän
noun

Examples of sign on in a Sentence

I signed on for the crew team simply as a lark
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.
Noem's controversial memo, first signed on June 11, 2025, required the secretary to personally approve any DHS contract or grant above $100,000, inserting the secretary's office into thousands of procurement decisions that had previously been handled below the Cabinet level. Nicole Sganga, CBS News, 1 Apr. 2026 The birthright citizenship order, which Trump signed on the first day of his second term, is part of his Republican administration’s broad immigration crackdown. Mark Sherman, Chicago Tribune, 1 Apr. 2026 The birthright citizenship case, one of the biggest before the court during its current term, was triggered by an executive order Trump signed on his first day back in office last year. Michael Collins, USA Today, 1 Apr. 2026 As part of a new safety effort by the Idaho Transportation Department, the city of Eagle recently installed no-parking signs on the east side of Eagle Road between the Boise River and Island Woods Road. Noah Daly, Idaho Statesman, 1 Apr. 2026 Love and relationships could also take a surprising turn, particularly when Venus joins forces with Uranus in this Earth sign on April 23. Valerie Mesa, PEOPLE, 1 Apr. 2026 The birthright citizenship order, which Trump signed on the first day of his second term, is a keystone of his administration’s broad immigration crackdown. Andrea Castillo, Los Angeles Times, 1 Apr. 2026 Trump’s executive order, signed on his first day back in office in January 2025, challenges that interpretation. Antonio María Delgado, Miami Herald, 1 Apr. 2026 The order, which Trump signed on the first day of his second term, declared that children born to parents who are in the United States illegally or temporarily are not American citizens. ABC News, 31 Mar. 2026

Word History

First Known Use

1879, in the meaning defined at sense 1

Time Traveler
The first known use of sign on was in 1879

Cite this Entry

“Sign on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sign%20on. Accessed 2 Apr. 2026.

Kids Definition

sign on

verb
(ˈ)sī-ˈnȯn
-ˈnän
1
: to hire oneself by or as if by a signature
signed on as a member of the crew
2
: to announce the beginning of broadcasting

More from Merriam-Webster on sign on

Love words? Need even more definitions?

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

More from Merriam-Webster