Meaning of “suit” - Learner’s Dictionary

suit

verb [ T ] us uk /suːt/
That jacket really suits you.I like this hat, but I don't think it suits me.Fiona wore a skirt that really suited her.You shouldn't wear that shirt. It doesn't suit you.Mark has grown a beard, but I don't think it suits him.
ATTRACTIVE

B2 to make someone look more attractive:

Green really suits you.
ACCEPTABLE

B2 to be acceptable or right for someone:

It would suit me better if we left a bit earlier.
be suited to/for sth

to be right for someone or something:

These plants are better suited to a warm climate.
→ See also suit sb down to the ground

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