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Definition of signup

signup

/ˈsaɪn.ʌp/
sign · up
Plural:signups
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signup Lexical Profile

signup Game Scores & Validity

• noun

1

The act or process of registering, enrolling, or subscribing to participate in an activity, organization, or digital service.

Example

"Online signup for the summer community classes begins next Monday morning."

2

A person who has newly registered or enrolled for a service, membership, or event.

Example

"The charity walk attracted over two hundred new signups during its first week of promotion."

Synonyms
View all synonyms for signup
Antonyms
View all antonyms for signup

Word Nuance & Usage

The closed compound "signup" (or hyphenated "sign-up") is a noun or attributive modifier (as in "a signup sheet"), whereas the open two-word phrase "sign up" is used for the phrasal verb (as in "please sign up before Friday").

• Rhymes for signup

• Nearby Words

signora
signpost
signposting
signup
sikh
sikhism
sikkim

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Signup. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/signup
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