遺作[isaku] posthumous works
一毛作[ichimousaku] (a) single crop
稲作[inasaku] rice cultivation
永小作[eikosaku] perpetual land lease
永子作権[eikosakuken] perpetual land lease

英作文[eisakubun] English composition
遠隔操作[enkakusousa] remote control
佳作[kasaku] good piece of work
家作[kasaku] making house
寡作[kasaku] low production

競べ[kurabe] contest
駅伝競走[ekidenkyousou] long-distance relay race
価格競争[kakakukyousou] price competition
競う[kisou] to compete with
競る[seru] to compete

競泳[kyouei] swimming race
競演[kyouen] recital contest
競技[kyougi] game
競技者[kyougisha] competitor
競合[kyougou] contention