the quality of being cheerful and dispelling gloom
"flowers added a note of cheerfulness to the drab room"
a cry or shout of approval
spur on or encourage especially by cheers and shouts
"The crowd cheered the demonstrating strikers"
- root on - urge on - pep up
- cheer up - chirk up
cause (somebody) to feel happier or more cheerful
"She tried to cheer up the disappointed child when he failed to win the spelling bee"
- cheer up - jolly along - jolly up
show approval or good wishes by shouting
"everybody cheered the birthday boy"
give encouragement to