俳画[haiga] briefly drawn picture
俳句[haiku] haiku
俳号[haigou] pseudonym of a haiku poet
俳人[haijin] haiku poet
俳聖[haisei] famous haiku poet

俳壇[haidan] the world of the haiku
俳文[haibun] prose with a poetic haiku flavor (flavour)
俳味[haimi] subdued taste
俳優[haiyuu] actor
俳友[haiyuu] (haiku) poetry pals

徘徊[haikai] loitering
低徊[teikai] going about immersed or absorbed in

低徊趣味[teikaishumi] disposition toward rejecting mundane affairs and enjoying nature and art
彷徊[houkai] walking around aimlessly