The difference between Pocket and Trouser

Pocket as a noun:

A bag stitched to an item of clothing, used for carrying small items.

Pocket as a noun:

Such a receptacle seen as housing someone's money; hence, financial resources.

Pocket as a noun (sports, billiards, pool, snooker):

An indention and cavity with a net sack or similar structure (into which the balls are to be struck) at each corner and one centered on each side of a pool or snooker table.

Pocket as a noun:

An enclosed volume of one substance surrounded by another.

Pocket as a noun (Australia):

An area of land surrounded by a loop of a river.

Pocket as a noun (Australian rules football):

The area of the field to the side of the goal posts (four pockets in total on the field, one to each side of the goals at each end of the ground). The pocket is only a roughly defined area, extending from the behind post, at an angle, to perhaps about 30 meters out.

Pocket as a noun (American Football):

The region directly behind the offensive line in which the quarterback executes plays.

Pocket as a noun (military):

An area where military units are completely surrounded by enemy units.

Pocket as a noun (rugby):

The position held by a second defensive middle, where an advanced middle must retreat after making a touch on the attacking middle.

Pocket as a noun:

A large bag or sack formerly used for packing various articles, such as ginger, hops, or cowries; the pocket of wool held about 168 pounds.

Pocket as a noun (architecture):

A hole or space covered by a movable piece of board, as in a floor, boxing, partitions, etc.

Pocket as a noun (mining):

A cavity in a rock containing a nugget of gold, or other mineral; a small body of ore contained in such a cavity.

Pocket as a noun (nautical):

A strip of canvas sewn upon a sail so that a batten or a light spar can placed in the interspace.

Pocket as a noun:

The pouch of an animal.

Pocket as a noun (bowling):

The ideal point where the pins are hit by the bowling ball.

Pocket as a noun:

A socket for receiving the base of a post, stake, etc.

Pocket as a noun:

A bight on a lee shore.

Pocket as a noun (dentistry):

A small space between a tooth and the adjoining gum, formed by an abnormal separation of the two.

Pocket as a verb:

To put (something) into a pocket.

Pocket as a verb (sports, billiards, snooker, pool):

To cause a ball to go into one of the pockets of the table; to complete a shot.

Pocket as a verb (slang):

To take and keep (especially money) that which is not one's own.

Pocket as a verb (slang):

To shoplift, to steal.

Pocket as a verb (transitive, obsolete):

To receive (an insult, an affront, etc.) without open resentment, or without seeking redress.

Pocket as an adjective:

Of a size suitable for putting into a pocket.

Pocket as an adjective:

Smaller or more compact than usual.

Pocket as an adjective (Texas hold'em, _, poker):

Referring to the two initial hole cards.

Trouser as a noun (used attributively as a modifier):

Of or relating to trousers.

Trouser as a noun (in clothing retail and fashion):

A pair of trousers.

Trouser as a verb (transitive, British, Ireland, informal):

To put money into one's trouser pocket; to pocket.

Trouser as a verb (transitive, British, Ireland, informal):

To legally remove funds from an organization for personal use.

Trouser as a verb (transitive, British, Ireland, informal):

To secretively steal an item or money for personal use.