What is the meaning of Crutch?

A device to assist in motion as a cane, especially one that provides support under the arm to reduce weight on a leg.

Something that supports, often used negatively to indicate that it is not needed and causes an unhealthful dependency; a prop

A crotch; the area of body where the legs fork from the trunk.

A form of pommel for a woman's saddle, consisting of a forked rest to hold the leg of the rider.

A knee, or piece of knee timber.

A forked stanchion or post; a crotch.

To support on crutches; to prop up.

To move on crutches.

To shear the hindquarters of a sheep; to dag.

to stir with a crutch.

Source: wiktionary.org