signing up
phrasal verbUK /ˌsaɪnɪŋ ˈʌp/
US /ˌsaɪnɪŋ ˈʌp/
Joining a group or starting to take part in something by writing your name.
She is signing up for the school choir this week.
RELATED WORDS
OTHER MEANINGS
2. Creating an account on a website or app.
Signing up for the game only takes a minute.
3. Agreeing to do something or take part in an activity.
He is signing up to help at the bake sale.
4. Adding your name to a list to get something.
They are signing up for a free library card.