going or being a long way down from the top or surface. or being of a particular distance from the top to the bottom.

very strongly felt or experienced and usually lasting a long time.

(of a sound) low.

showing or needing serious thought. or not easy to understand.

If something is deep. it has a large distance between its edges. especially between its front and back edges.

near the middle of something. and a long distance from its edges.

In cricket. deep positions are far from the wicket (= the area where the batters stand and run).

(of a colour) strong and dark.

a long way from the top or surface .

In sports such as football. rugby. orice hockey . if a player or team plays or defends deep. they stay a long way inside their own half of the field.

the sea or the ocean.

going or being a long way down from the top or surface. or being at a particular distance down from the top.

having a (sometimes stated) distance from front to back.

strongly felt or experienced. or having a strong and lasting effect.

difficult to understand; complicated.

(of a sound) low.

(of a color) strong and dark.

very large or serious.

experiencing very serious problems.

to be in or get into serious trouble.

owing a very large amount of money.

if you say that an organization or a person has deep pockets. you mean that they have a lot of money to spend.

to start. or make someone start. doing something new and difficult without help or preparation.