anteroom

from WordNet (r) 3.0 (2006)

anteroom
    n 1: a large entrance or reception room or area [syn:
         {anteroom}, {antechamber}, {entrance hall}, {hall},
         {foyer}, {lobby}, {vestibule}]

from The Collaborative International Dictionary of English v.0.48

Anteroom \An"te*room\, n.
   A room before, or forming an entrance to, another; a waiting
   room.
   [1913 Webster]

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