Definition, synonyms and related words
The act of signing up, as for a commercial service.
"You need to sign up on the website before you can access your free trial account."
In plain English: A signup is when you officially register your name to join something new.
"The signup for the new gym class is now open to everyone."
Usage: Use this noun to refer specifically to the process or requirement of registering for an account on a website or app. It is often used in phrases like "sign-up page" or "during sign-up."
The word signup is a shortened form of the phrase sign up, which originally meant to register or enroll oneself by signing one's name on a list. It entered common usage as a convenient single-word verb for this action without changing its core meaning.