n(1)椅子(movable seat for one person with a back，four legs and sometimes with arms)[C]：sit down on/in a～坐在椅子上;Have/Take a～.請(qǐng)入座。easy/ folding/revolving/rocking～安樂(lè)椅/折疊椅/轉(zhuǎn)椅/搖椅;
(2)主席(職位)((position of the) person who is chairman at a meeting)[C，the～]：take the～at a meeting擔(dān)任會(huì)議主席;Who is in the～for the meeting? 誰(shuí)擔(dān)任會(huì)議主席?The～is calling for order.會(huì)議主席要求大家遵守秩序。address a question to the～向會(huì)議主席提一個(gè)問(wèn)題;
(3)教授職位(position of a professor (of a subject)in a university)[C]：hold the～of English/philosophy/history擔(dān)任英語(yǔ)/哲學(xué)/歷史教授;He is too young to get the～.他太年輕不能擔(dān)任教授。
(4)電椅(electric chair)[C，the～]：The criminal got the～for murder.那罪犯因謀殺罪被電椅處死。
vt(1)當(dāng)主席(be chairman(at a meeting))[T+n]：～a meeting主持會(huì)議;The commission was～ed by Jackson.委員會(huì)由杰克遜主持。
(2)抬著(獲勝者)(carry (sb who has won sth)as though in a chair)[T+n，T+n+prep]：He was～ed by the crowd when his horse came in first.他的馬第一個(gè)到達(dá)終點(diǎn)時(shí)，他被人群抬起。When he won the race his supporters～ed him round the field.他在賽跑中獲勝，他的支持者們抬著他繞場(chǎng)一周。
→′chairman n主席;′chairwoman n 女主席;′chairperson n 主席