wheelhouse

Short definition from Wiktionary

Noun

1. 1
   A building or other structure containing a (large) wheel, such as the water wheel of a mill.
2. 2
   A building or other structure containing a (large) wheel, such as the water wheel of a mill: The partially enclosed structure above and around a wheel of an automobile, typically partly formed by a portion of a fender panel that has been extended outward beyond the plane of the rest of the panel.
3. 3
   A building or other structure containing a (large) wheel, such as the water wheel of a mill: An enclosed compartment on the deck of a vessel such as a fishing boat, originally housing its helm or steering wheel, from which it may be navigated; on a larger vessel it is the bridge.
4. 4
   A building or other structure containing a (large) wheel, such as the water wheel of a mill: The enclosed structure around the paddlewheel of a steamboat.
5. 5
   A prehistoric structure from the Iron Age found in Scotland, characteristically including an outer wall within which a circle of stone piers (resembling the spokes of a wheel) form the basis for lintel arches supporting corbelled roofing with a hearth at the hub.
6. 6
   A pitch location which is favourable to the hitter.
7. 7
   A person's area of authority or expertise.
8. 8
   A set of skills necessitated by a situation.