Dictionary.com
Thesaurus.com
Synonyms

sign-up

American  
[sahyn-uhp] / ˈsaɪnˌʌp /
Or signup

noun

  1. an act or instance of signing up.


sign up British  

verb

  1. (adverb) to enlist or cause to enlist, as for military service

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

sign up Idioms  
  1. Enlist in an organization; also, register or subscribe to something. For example, He signed up for four years in the navy, or Are you planning to sign up for that pottery class? [Early 1900s]


Etymology

Origin of sign-up

First recorded in 1945–50; noun use of verb phrase sign up

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

While beneficiaries can switch insurance carriers during the yearly open-enrollment period, changing tracks from Medicare Advantage to traditional Medicare can be bumpy because beneficiaries may have to pay exorbitant costs for a Medicare supplement plan, also known as a Medigap plan, outside of the initial sign-up window at 65.

From MarketWatch

In the case of an expat who is approaching 65, you have to pay really close attention to the sign-up deadlines.

From MarketWatch

A coalition including Idaho’s union didn’t sue until September—getting headlines alongside the start of school, and ensuring the litigation was raging when the sign-up period began in January of this year.

From The Wall Street Journal

Wyoming’s case came to a head this week in oral arguments in front of the state supreme court, but the litigation and continued injunction cast a shadow over the most recent sign-up period.

From The Wall Street Journal

He also pockets some money by sharing referral links to the app on social media, with each sign-up netting him $10.

From The Wall Street Journal