roundhouse Meaning, Definition & Usage

  1. noun workplace consisting of a circular building for repairing locomotives
  2. noun a hook delivered with an exaggerated swing

WordNet

Round"house` noun
Definitions
  1. A constable's prison; a lockup, watch-house, or station house. Obs.
  2. (Naut.) (a) A cabin or apartament on the after part of the quarter-deck, having the poop for its roof; -- sometimes called the coach. (b) A privy near the bow of the vessel.
  3. A house for locomotive engines, built circularly around a turntable.

Webster 1913