What is the meaning of Couch?

An item of furniture, often upholstered, for the comfortable seating of more than one person; a sofa.

A bed, a resting-place.

The den of an otter.

A preliminary layer, as of colour or size.

A mass of steeped barley spread upon a floor to germinate, in malting; or the floor occupied by the barley.

Psychotherapy.

Voters who opt out of voting, usually by staying home on their couch.

To lie down; to recline (upon a couch or other place of repose).

To bend the body, as in reverence, pain, labor, etc.; to stoop; to crouch.

To lay something upon a bed or other resting place.

To arrange or dispose as if in a bed.

To lay or deposit in a bed or layer; to bed.

To lower (a spear or lance) to the position of attack.

In the treatment of a cataract in the eye, to displace the opaque lens with a sharp object such as a needle. The technique is regarded as largely obsolete.

To transfer (for example, sheets of partly dried pulp) from the wire mould to a felt blanket for further drying.

To attach a thread onto fabric with small stitches in order to add texture.

To phrase in a particular style; to use specific wording for.

To lie down for concealment; to conceal, to hide; to be concealed; to be included or involved darkly or secretly.

Couch grass, a species of persistent grass, Elymus repens, usually considered a weed.

Source: wiktionary.org