名词

1.可数名词：椅子

2.主席席位，委员长职位；（会议或委员会的）主席；委员长

3.可数名词：（大学的）系主任

4.【美】【非正式】=the electric chair

及物动词：

担任（会议、讨论等的）主席；主持（会议、讨论等）

词形变化

时态chaired，chairing，chairs

单词分析

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。

英语解释

act or preside as chair, as of an academic department in a university

the officer who presides at the meetings of an organization

an instrument of execution by electrocution; resembles an ordinary seat for one person

preside over

the position of professor

a seat for one person, with a support for the back