an expression of praise, commendation, or admiration

A sincere compliment boosts one's morale.

a formal act or expression of civility, respect, or regard

The mayor paid him the compliment of escorting him.

compliments, a courteous greeting; good wishes; regards

He sends you his compliments.

Archaic . a gift; present.

to pay a compliment to

She complimented the child on his good behavior.

to show kindness or regard for by a gift or other favor

He complimented us by giving a party in our honor.

to congratulate; felicitate

to compliment a prince on the birth of a son.

to pay compliments.