1. The notch of an arrow or crossbow.

2. The hammer in the lock of a firearm. At cock, At full cock, with the hammer raised and ready to fire; — said of firearms, also, jocularly, of one prepared for instant action. — At half cock. See under Half. — Cock feather (Archery), the feather of an arrow at right angles to the direction of the cock or notch. Nares.

COCK
Cock, v. t.

Defn: To draw the hammer of (a firearm) fully back and set it for firing.

COCK
Cock, v. i.

Defn: To draw back the hammer of a firearm, and set it for firing.
Cocked, fired, and missed his man. Byron.

COCK Cock, n. Etym: [Cf. Icel. kökkr lump, Dan. kok heap, or E. cock to set erect.]

Defn: A small concial pile of hay.

COCK
Cock, v. t.

Defn: To put into cocks or heaps, as hay.
Under the cocked hay. Spenser.