The difference between Flag and Switch

Flag as a noun:

A piece of cloth, often decorated with an emblem, used as a visual signal or symbol.

Flag as a noun:

An exact representation of a flag (for example: a digital one used in websites).

Flag as a noun (nautical):

A flag flown by a ship to show the presence on board of the admiral; the admiral himself, or his flagship.

Flag as a noun (nautical, often used attributively):

A signal flag.

Flag as a noun (construction):

a construction material used for paving, flooring, roofing or tiling

Flag as a noun:

The use of a flag, especially to indicate the start of a race or other event.

Flag as a noun (computer science):

A variable or memory location that stores a true-or-false, yes-or-no value, typically either recording the fact that a certain event has occurred or requesting that a certain optional action take place.

Flag as a noun (computer science):

In a command line interface, a command parameter requesting optional behavior or otherwise modifying the action of the command being invoked.

Flag as a noun (British):

An abbreviation for capture the flag.

Flag as a noun (geometry):

A sequence of faces of a given polytope, one of each dimension up to that of the polytope (formally, though in practice not always explicitly, including the null face and the polytope itself), such that each face in the sequence is part of the next-higher dimension face.

Flag as a noun (mathematics, linear algebra):

A sequence of subspaces of a vector space, beginning with the null space and ending with the vector space itself, such that each member of the sequence (until the last) is a proper subspace of the next.

Flag as a verb:

To furnish or deck out with flags.

Flag as a verb:

To mark with a flag, especially to indicate the importance of something.

Flag as a verb (often with ''down''):

To signal to, especially to stop a passing vehicle etc.

Flag as a verb:

To convey (a message) by means of flag signals.

Flag as a verb (often with ''up''):

To note, mark or point out for attention.

Flag as a verb (computing):

To signal (an event).

Flag as a verb (computing):

To set a program variable to true.

Flag as a verb:

To decoy (game) by waving a flag, handkerchief, etc. to arouse the animal's curiosity.

Flag as a verb (sports):

To penalize for an infraction.

Flag as a verb (intransitive):

To weaken, become feeble.

Flag as a verb:

To hang loose without stiffness; to bend down, as flexible bodies; to be loose, yielding, limp.

Flag as a verb:

To let droop; to suffer to fall, or let fall, into feebleness.

Flag as a verb:

To enervate; to exhaust the vigour or elasticity of.

Flag as a noun:

Any of various plants with sword-shaped leaves, especially irises; specifically, Iris pseudacorus.

Flag as a noun (obsolete, _, except in dialects):

A slice of turf; a sod.

Flag as a noun:

A slab of stone; a flagstone, a flat piece of stone used for paving.

Flag as a noun (geology):

Any hard, evenly stratified sandstone, which splits into layers suitable for flagstones.

Flag as a verb (transitive):

To pave with flagstones.

Flag as a noun:

A group of feathers on the lower part of the legs of certain hawks, owls, etc.

Flag as a noun:

A group of elongated wing feathers in certain hawks.

Flag as a noun:

The bushy tail of a dog such as a setter.

Flag as a noun (music):

A hook attached to the stem of a written note that assigns its rhythmic value

Switch as a noun:

A device to turn electric current on and off or direct its flow.

Switch as a noun:

A change.

Switch as a noun (rail transport, US):

A movable section of railroad track which allows the train to be directed down one of two destination tracks; point.

Switch as a noun:

A slender woody plant stem used as a whip; a thin, flexible rod, associated with corporal punishment in the United States.

Switch as a noun (computer science):

A command line notation allowing specification of optional behavior.

Switch as a noun (computing, programming):

A programming construct that takes different actions depending on the value of an expression.

Switch as a noun (computing, networking):

A networking device connecting multiple wires, allowing them to communicate simultaneously, when possible. Compare to the less efficient hub device that solely duplicates network packets to each wire.

Switch as a noun (telecommunication):

A system of specialized relays, computer hardware, or other equipment which allows the interconnection of a calling party's telephone line with any called party's line.

Switch as a noun (BDSM):

One who is willing to take either a submissive or a dominant role in a sexual relationship.

Switch as a noun:

A separate mass or tress of hair, or of some substance (such as jute) made to resemble hair, formerly worn on the head by women.

Switch as a verb (transitive):

To exchange.

Switch as a verb (transitive):

To change (something) to the specified state using a switch.

Switch as a verb (transitive):

To whip or hit with a switch.

Switch as a verb (intransitive):

To change places, tasks, etc.

Switch as a verb (slang, intransitive):

To get angry suddenly; to quickly or unreasonably become enraged.

Switch as a verb:

To swing or whisk.

Switch as a verb:

To be swung or whisked.

Switch as a verb:

To trim.

Switch as a verb:

To turn from one railway track to another; to transfer by a switch; generally with off, from, etc.

Switch as a verb (ecclesiastical):

To shift to another circuit.

Switch as an adjective (snowboarding):

Pertaining to riding with the front and back feet swapped round compared to one's normal position.

Switch as an adjective (freestyle, _, skiing):

Pertaining to skiing backwards.