What is the meaning of Crab?

A crustacean of the infraorder Brachyura, having five pairs of legs, the foremost of which are in the form of claws, and a carapace.

The meat of this crustacean, served as food; crabmeat.

A bad-tempered person.

An infestation of pubic lice (Pthirus pubis).

The angle by which an aircraft's nose is pointed upwind of its groundtrack to compensate for crosswinds during an approach to landing; its crab angle.

A playing card with the rank of three.

A position in rowing where the oar is pushed under the rigger by the force of the water.

A defect in an outwardly normal object that may render it inconvenient and troublesome to use.

An unsold book that is returned to the publisher.

To fish for crabs.

To ruin.

To complain.

To complain about.

To drift or move sideways or to leeward .

To move in a manner that involves keeping low and clinging to surfaces.

To navigate (an aircraft, e.g. a glider) sideways against an air current in order to maintain a straight-line course.

To move (a camera) sideways.

, to fly slightly off the straight-line course towards an enemy aircraft, as the machine guns on early aircraft did not allow firing through the propeller disk.

To back out of something.

The crab apple or wild apple.

The tree bearing crab apples, which has a dogbane-like bitter bark with medical use.

A cudgel made of the wood of the crab tree; a crabstick.

A movable winch or windlass with powerful gearing, used with derricks, etc.

A form of windlass, or geared capstan, for hauling ships into dock, etc.

A machine used in ropewalks to stretch the yarn.

A claw for anchoring a portable machine.

To irritate, make surly or sour

To be ill-tempered; to complain or find fault.

To cudgel or beat, as with a crabstick

The tree species Carapa guianensis, native to South America.

Short for carabiner.

Alternative form of crabbe (crab)

Alternative form of crabbe (crabapple)

crab

Source: wiktionary.org