Meaning of “cheer” - Learner’s Dictionary

cheer

verb uk us /tʃɪər/

B2 [ I, T ] to shout loudly in order to show your approval or to encourage someone:

The crowd stood up and cheered at the end of the concert.
be cheered by sth

to feel happier or encouraged because of something

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