호흡breathing; breath 흡수absorption; intake 흡연실smoking room 간접흡연second-hand smoking 호흡기respiratory organ 흡수력absorbing power; absorbing ability 흡수성absorptiveness; absorption 흡연smoking 흡연자smoker 흡인absorption; suction; attraction

흡연실smoking room 간접흡연second-hand smoking 금연nonsmoking 금연석non-smoking seat 연기smoke 흡연smoking 흡연자smoker 끽연smoking 매연exhaust gas; sooty smoke 무연탄anthracite; hard coal

출석attendance 결석absence 출석부roll book; attendance book 결석계report of absence; report of nonattendance 결석생absent student 경로석gyeongnoseok; seat for the elderly 관객석seat 관람석bleacher; seat 금연석non-smoking seat 노약자석seat for the elderly and infirm