- the day on which wages or salaries are paid
WordReference Random House Unabridged Dictionary of American English © 2017
- the day on which wages are given, payment is made, etc.
- Informal Termsa day or period during which a great deal of money, success, fame, etc., is won or obtained:Payday came when she was given a screen test by a big Hollywood studio.
- pay1 + day 1520–30