A shallow portion of an otherwise deep body of water.

A fish, the rudd.

(historical) A costermonger's barrow.

(transitive, intransitive) To make or become less deep.

Having little depth; significantly less deep than wide.

Extending not far downward.

Concerned mainly with superficial matters.

Lacking interest or substance.

Not intellectually deep; not penetrating deeply; simple; not wise or knowing.

(obsolete) Not deep in tone.

(tennis) Not far forward, close to the net.

(of an angle) Not steep; close to horizontal.