懐柔[kaijuu] winning over
外柔内剛[gaijuunaigou] gentle but firm
柔弱[nyuujaku] weakness
柔術[juujutsu] jujitsu (classical Japanese martial art, usually referring to fighting without a weapon)
柔道[juudou] judo

柔道家[juudouka] judo practitioner
柔道場[juudoujou] judo hall
柔道着[juudougi] judo gi
柔軟[juunan] flexible
柔軟仕上げ剤[juunanshiagezai] fabric softener

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book