The Collaborative International Dictionary of English v.0.48:

Seat \Seat\, v. t. [imp. & p. p. Seated; p. pr. & vb. n.
   Seating.]
   1. To place on a seat; to cause to sit down; as, to seat
      one's self.
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            The guests were no sooner seated but they entered
            into a warm debate.                   --Arbuthnot.
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   2. To cause to occupy a post, site, situation, or the like;
      to station; to establish; to fix; to settle.
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            Thus high . . . is King Richard seated. --Shak.
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            They had seated themselves in New Guiana. --Sir W.
                                                  Raleigh.
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   3. To assign a seat to, or the seats of; to give a sitting
      to; as, to seat a church, or persons in a church.
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   4. To fix; to set firm.
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            From their foundations, loosening to and fro,
            They plucked the seated hills.        --Milton.
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   5. To settle; to plant with inhabitants; as to seat a
      country. [Obs.] --W. Stith.
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   6. To put a seat or bottom in; as, to seat a chair.
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The Collaborative International Dictionary of English v.0.48:

Seating \Seat"ing\ (s[=e]t"[i^]ng), n.
   1. The act of providing with a seat or seats; as, the seating
      of an audience.
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   2. The act of making seats; also, the material for making
      seats; as, cane seating.
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WordNet (r) 3.0 (2006):

seating
    n 1: an area that includes places where several people can sit;
         "there is seating for 40 students in this classroom" [syn:
         seating, seats, seating room, seating area]
    2: the service of ushering people to their seats