verbs
show approval or good wishes by shouting
"everybody cheered the birthday boy"
is a type of (narrower)
express approval of
"I applaud your efforts"
cause (somebody) to feel happier or more cheerful
"She tried to cheer up the disappointed child when he failed to win the spelling bee"
spur on or encourage especially by cheers and shouts
"The crowd cheered the demonstrating strikers"