When people cheer, they shout loudly to show their approval or to encourage someone who is doing something such as taking part in a game. The crowd cheered as Premier Wayne Goss unveiled a lifesize statue of poet Banjo Paterson Swiss fans cheered Jakob Hlasek during yesterday's match with Courier. the Irish Americans who came to the park to cheer for their boys Cheering crowds lined the route. boo, jeer Cheer is also a noun. The colonel was rewarded with a resounding cheer from the men
become cheerful cause (somebody) to feel happier or more cheerful; "She tried to cheer up the disappointed child when he failed to win the spelling bee"
urge on or encourage especially by shouts; "The crowd cheered the demonstrating strikers"