cheer - noun

a cry or shout of approval

the quality of being cheerful and dispelling gloom

cheer - verb

• give encouragement to
• show approval or good wishes by shouting
• cause (somebody) to feel happier or more cheerful
• become cheerful
• spur on or encourage especially by cheers and shouts

cheer - thesaurus

barrack   cheerfulness   embolden   exhort   hearten   inspire   recreate   sunniness   sunshine   urge