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

哀詩[aishi] elegy
英詩[eishi] English poetry
漢詩[kanshi] Chinese poetry
狂詩曲[kyoushikyoku] rhapsody
吟遊詩人[ginyuushijin] troubadour

桂冠詩人[keikanshijin] poet laureate
劇詩[gekishi] dramatic poetry
原詩[genshi] original poem
現代詩[gendaishi] modern poetry

垂迹[suijaku] temporary manifestation by a buddha (in order to save people)
筆迹[hisseki] handwriting
真迹[shinseki] true autograph

事迹[jiseki] evidence
本地垂迹説[honjisuijakusetsu] manifestation theory (holding that Shinto gods are manifestations of buddhas)
迹門[shakumon] first half of the Lotus Sutra, in which the Buddha appears as a spatiotemporally restricted being