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

필통pencil holder 우체통post box; mail box 저금통money bank; coin bank; piggy bank 환기통ventilator; ventilator pipe; ventilation stack 배기통exhaust pipe; exhaust stack 산통fortune box 원통형being cylindrical 전화통phone; telephone set