一喜一憂[ikkiichiyuu] now rejoicing, now worrying
歓喜[kanki] delight
甘言は偶人を喜ばす[kangenhaguujinwoyorokobasu] sweet words only please a fool (prov)
喜がる[yogaru] to satisfy oneself
喜の字[kinoji] 77th birthday

喜び勇む[yorokobiisamu] to be in high spirits
喜ぶ[yorokobu] to be delighted
喜んで[yorokonde] with pleasure ...
喜悦[kietsu] joy
喜歌う[yorokobiutau] to rejoice and sing

哀歌[aika] lament (song)
愛唱歌[aishouka] (one's) favourite song
詠歌[eika] poem (esp. tanka)
艶歌[enka] enka
応援歌[ouenka] rooters' song

歌い合う[utaiau] to sing responsively
歌い上げる[utaiageru] to sing at the top of one's voice
歌詠み[utayomi] tanka composer
歌会[utakai] poetry party or competition