誹諧[haikai] haikai
俳諧師[haikaishi] writer of haikai poems
半諧音[hankaion] assonance
諧声[kaisei] vocal harmony
諧調[kaichou] melody

諧謔[kaigyaku] joke
滑稽諧謔[kokkeikaigyaku] smooth-talking and humorous
俳諧の連歌[haikainorenga] haikai (humorous or vulgar renga poetry)
諧謔を弄する[kaigyakuworousuru] to crack jokes
諧和[kaiwa] gentle mutual affection