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.
At the time, 75 faculty signed on to a letter calling on the school’s administration to revoke the organizational status of the campus’ Turning Point USA chapter. Claire Heddles, Miami Herald, 5 Mar. 2026 Kevin Bacon, Ted Danson, Dolph Lundgren and Tom Selleck have all signed on to host shows for the cable network; all four will also serve as executive producers on their respective series. Rick Porter, HollywoodReporter, 4 Mar. 2026 In addition to innovation, Nike's inventory cleanup is coming to an end, and the company is showing positive signs on the domestic front. Natasha Abellard, CNBC, 3 Mar. 2026 If other states and agencies sign on, Denham said the Water Authority is prepared to sell up to 10,000 acre-feet of water starting next year. Ian James, Los Angeles Times, 3 Mar. 2026 The formal talks to merge the groups picked up steam in the fall, leading to the agreement formally being signed on Tuesday evening, London time. Cynthia Littleton, Variety, 3 Mar. 2026 The Dazey Phase’s co-head Jake Casey has signed on as co-production partner, with Tai Duncan on board as a producer. Melanie Goodfellow, Deadline, 3 Mar. 2026 Lygizos and his team signed on to the project nearly two years ago, viewing the extended timeline as part of a longer-term commitment to downtown. Patricia Kaowthumrong, Denver Post, 3 Mar. 2026 On the other side, the American Civil Liberties Union has signed on as co-counsel to represent Hemani. Melissa Quinn, CBS News, 1 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 6 Mar. 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

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