seat

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Something, such as a chair or bench, that may be sat on.
2. n. A place in which one may sit.
3. n. The right to occupy such a place or a ticket indicating this right: got seats for the concert.
4. n. The part on which one rests in sitting: a bicycle seat.
5. n. The buttocks.
6. n. The part of a garment that covers the buttocks.
7. n. A part serving as the base of something else.
8. n. The surface or part on which another part sits or rests.
9. n. The place where something is located or based: The heart is the seat of the emotions.
10. n. A center of authority; a capital: the county seat. See Synonyms at center.
11. n. A place of abode or residence, especially a large house that is part of an estate: the squire's country seat.
12. n. Membership in an organization, such as a legislative body or stock exchange, that is obtained by appointment, election, or purchase.
13. n. The manner of sitting on a horse: a fox hunter with a good seat.
14. v. To place in or on a seat.
15. v. To cause or assist to sit down: The ushers will seat the members of the bride's family.
16. v. To provide with a particular seat: The usher seated me in the back row.
17. v. To have or provide seats for: We can seat 300 in the auditorium.
18. v. To install in a position of authority or eminence.
19. v. To fix firmly in place: seat an ammunition clip in an automatic rifle.
20. v. To rest on or fit into another part: The O-rings had not seated correctly in their grooves.
21. idiom. by the seat of (one's) pants Slang In a manner based on intuition and experience rather than method: He ran the business by the seat of his pants.
22. idiom. by the seat of (one's) pants Slang Without the use of instruments: an inexperienced pilot who had to fly the aircraft by the seat of her pants.

Wiktionary

1. n. A place in which to sit.
2. n. The horizontal portion of a chair or other furniture designed for sitting.
3. n. A piece of furniture made for sitting; e.g. a chair, stool or bench; any improvised place for sitting.
4. n. The part of an object or individual (usually the buttocks) directly involved in sitting.
5. n. The part of a piece of clothing (usually pants or trousers) covering the buttocks.
6. n. A membership in an organization, particularly a representative body.
7. n. The location of a governing body.
8. n. certain Commonwealth countries an electoral district, especially for a national legislature.
9. n. The starting point of a fire.
10. v. transitive To put an object into a place where it will rest.
11. v. transitive To provide places to sit.
12. v. obsolete, intransitive To rest; to lie down.