偉才[isai] genius
何才[nansai] how old?
画才[gasai] artistic talent
鬼才[kisai] wizard
賢才[kensai] man of ability

口才[kousai] clever speech
才覚[saikaku] ready wit
才学[saigaku] talent and education
才幹[saikan] ability
才器[saiki] talent

関西辯[kansaiben] Kansai dialect
辯解[benkai] justification
辯才天[benzaiten] Saraswati (god of wealth, music, eloquence and water)
辯士[benshi] lecturer
辯論[benron] discussion

詭辯[kiben] sophistry
辯駁[benpaku] refutation
能辯[nouben] eloquence
女辯士[onnabenshi] female narrator in a silent movie theatre