■ noun
1》 a loud, sharp cry, especially of pain, surprise, or delight.
↘ N. Amer. an organized cheer, especially one used to support a sports team.
2》 ( a ~ ) Brit. informal, dated an amusing person or thing.
■ verb shout in a loud or piercing way.
Origin
OE g(i)ellan (v.), of Gmc origin.