岡 Home·Characters·岡 Character · Qualities 岡 oka hill Composition 12345678 山mountain Origin Mountain (山) under a net-like element serving as phonetic: ridge, hill. Related characters 剛hard, firm不not, negation乏lack, scarcity也to be, also事matter, affair他other以by means of位rank, position何what, which健sturdy, healthy元origin, beginning