A set of outer clothes made of the same fabric, usually consisting of a jacket with matching trousers or a skirt.

“He wore a sharp grey suit to his sister's wedding.”

Any of the four sets into which a deck of playing cards is divided (spades, hearts, diamonds, and clubs).

“You have to play a card of the same suit as the first player.”

To be convenient for or acceptable to someone.

“Does meeting at the coffee shop at 3:00 PM suit you?”