chair

chair, armchair, bench, stool

这些名词均有“椅子”或“凳子”之意。
chair: 通常指带有靠背的椅子，有时也指有靠背有扶手的椅子。
armchair: 指有扶手的椅子。
bench: 指可供两人或更多人坐的长凳或石凳，多置于公园或划艇中。
stool: 多指方的或圆的无靠背无扶手一人坐的凳子。

名词 chair:

1. a seat for one person, with a support for the back
2. the position of professor
   同义词：professorship
3. the officer who presides at the meetings of an organization
   同义词：president, chairman, chairwoman, chairperson
4. an instrument of execution by electrocution; resembles an ordinary seat for one person
   同义词：electric chair, death chair, hot seat

动词 chair:

1. act or preside as chair, as of an academic department in a university
   同义词：chairman
2. preside over
   同义词：moderate, lead

1. The old chair gave a groan when the fat man sat down on it.
   那个胖子坐下时，旧椅子发出嘎吱的响声。
2. Father sits in the same chair every evening.
   父亲每晚都坐在同一张椅子上，

chair

n.（名词）
A piece of furniture consisting of a seat, legs, back, and often arms, designed to accommodate one person.
椅子：有底座、支撑腿和靠背的家具，通常带扶手，设计用来供一人坐
A seat of office, authority, or dignity, such as that of a bishop.
权威者的职位：官员、显贵或要人的职位，如主教职位

An office or position of authority, such as a professorship.
要职，高位：有权威的职位，如教授职位
A person who holds an office or a position of authority, such as one who presides over a meeting or administers a department of instruction at a college; a chairperson.
高官，主席：占有权威职位或席位的人，如主持一会议的人或大学里的系主任；主席
The position of a player in an orchestra.
乐队演奏者的职位
Slang The electric chair.
【俚语】 电椅
A seat carried about on poles; a sedan chair.
轿子：放在抬杆上搬动的座位；轿子
Any of several devices that serve to support or secure, such as a metal block that supports and holds railroad track in position.
支轴：一种用来支撑和固定的装置，如支持和固定路轨保持原位的金属块
v.tr.（及物动词）
chaired,chair.ing,chairs
To install in a position of authority, especially as a presiding officer.
使就任其职，尤指做主席
To preside over as chairperson:
主持，担任主席：
例句：
chair a meeting.
主持会议

来源：
Middle English chaiere
中古英语 chaiere
from Old French
源自 古法语
from Latin cathedra * see cathedra
源自 拉丁语 cathedra *参见 cathedra