chair
n. countablen. a piece of furniture with a back and four legs that one person sits on.
n. a separate seat for one person, typically having four legs and a back. When used in an organizational context, it refers to the person in charge of a meeting or committee.
Please sit down in that comfortable chair.
The teacher asked the students to pull their chairs into a circle for the group discussion.
The orchestra's first chair violinist is responsible for leading the section and performing any solo passages required by the score.
From Middle English chayer, chaire, chaiere, chaere, chayre, chayere, from Old French chaiere, chaere, from Latin cathedra (“seat”), from Ancient Greek καθέδρα (kathédra), from κατά (katá, “down”) + ἕδρα (hédra, “seat”). Partially displaced native stool and settle, which now have more specialised senses. Doublet of cathedra and chaise.
In formal meetings, the noun can refer to the position of authority; in this sense, it is often used with the definite article ('the chair').