A male bird, especially:

A valve or tap for controlling flow in plumbing.

The hammer of a firearm trigger mechanism.

The notch of an arrow or crossbow.

The penis.

The circle at the end of the rink.

The state of being cocked; an upward turn, tilt or angle.

A stupid person.

Nonsense; rubbish.

(Tasmania) Term of address.

A boastful tilt of one's head or hat.

Shuttlecock

A vane in the shape of a cock; a weathercock.

A chief man; a leader or master.

The crow of a cock, especially the first crow in the morning; cockcrow.

A male fish, especially a salmon or trout.

The style or gnomon of a sundial.

The indicator of a balance.

The bridge piece that affords a bearing for the pivot of a balance in a clock or watch.

To lift the cock of a firearm or crossbow; to prepare (a gun or crossbow) to be fired.

To be prepared to be triggered by having the cock lifted.

To erect; to turn up.

To copulate with.

To turn or twist something upwards or to one side; to lift or tilt (e.g. headwear) boastfully.

To turn (the eye) obliquely and partially close its lid, as an expression of derision or insinuation.

To strut; to swagger; to look big, pert, or menacing.

To make a nestle-cock of, to pamper or spoil (of children)

Expression of annoyance.

(where it is still sometimes used) Vulva, vagina.

A small conical pile of hay.

To form into piles.

Abbreviation of cock-boat, a type of small boat.

A corruption of the word God, used in oaths.