The Collaborative International Dictionary of English v.0.48:

Seat \Seat\ (s[=e]t), n. [OE. sete, Icel. saeti; akin to Sw.
   s[aum]te, Dan. saede, MHG. s[=a]ze, AS. set, setl, and E.
   sit. [root]154. See Sit, and cf. Settle, n.]
   1. The place or thing upon which one sits; hence; anything
      made to be sat in or upon, as a chair, bench, stool,
      saddle, or the like.
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            And Jesus . . . overthrew the tables of the money
            changers, and the seats of them that sold doves.
                                                  --Matt. xxi.
                                                  12.
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   2. The place occupied by anything, or where any person or
      thing is situated, resides, or abides; a site; an abode, a
      station; a post; a situation.
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            Where thou dwellest, even where Satan's seat is.
                                                  --Rev. ii. 13.
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            He that builds a fair house upon an ill seat
            committeth himself to prison.         --Bacon.
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            A seat of plenty, content, and tranquillity.
                                                  --Macaulay.
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   3. That part of a thing on which a person sits; as, the seat
      of a chair or saddle; the seat of a pair of pantaloons.
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   4. A sitting; a right to sit; regular or appropriate place of
      sitting; as, a seat in a church; a seat for the season in
      the opera house.
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   5. Posture, or way of sitting, on horseback.
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            She had so good a seat and hand she might be trusted
            with any mount.                       --G. Eliot.
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   6. (Mach.) A part or surface on which another part or surface
      rests; as, a valve seat.
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   Seat worm (Zool.), the pinworm.
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