Meaning of “complimentary” - Learner’s Dictionary

complimentary

adjective uk us /ˌkɒmplɪˈmentəri/
PRAISING

praising or expressing admiration for someone:

a complimentary report
FREE

given free, especially by a business:

a complimentary glass of wine

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