Meaning of “Saturday” - Learner’s Dictionary

Saturday

noun [ C, U ] us uk /ˈsætədeɪ/ written abbreviation Sat
It's my birthday next Saturday.Ed works in the bookshop on Saturdays.Sarah went shopping on Saturday.Do you have plans for Saturday night?Our next match is on Saturday.

A1 the day of the week after Friday and before Sunday

(Definition of “Saturday” from the Cambridge Learner’s Dictionary © Cambridge University Press)