1.Definition: bright and pleasant; promoting a feeling of cheer
"A gay sunny room"
2.Definition: brightly colored and showy
"A dress a bit too gay for her years", "Birds with gay plumage"
3.Definition: full of or showing high-spirited merriment
"When hearts were young and gay", "A poet could not but be gay, in such a jocund company"
4.Definition: given to social pleasures often including dissipation
"Led a gay Bohemian life", "A gay old rogue with an eye for the ladies"
6.Definition: offering fun and gaiety
"Gay and exciting night life"