wheelhouse

1. A building or other structure containing a (large) wheel, such as the water wheel of a mill.
2. 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. 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. The enclosed structure around the paddlewheel of a steamboat.
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. A pitch location which is favourable to the hitter. (US) · The pitch was right in his wheelhouse, and he hit a grand slam.
7. A person's area of authority or expertise. (US, figuratively) · Horse viruses are in Pat’s wheelhouse.
8. A set of skills necessitated by a situation. (US, figuratively) · Ever since I started taking antipsychotics, managing my mental health has been a whole different wheelhouse.

Çoğul wheelhouses