In transitive terms the difference between increase and vary

is that increase is to make (a quantity) larger while vary is to make of different kinds; to make different from one another; to diversity; to variegate.

As verbs the difference between increase and vary

is that increase is to become larger while vary is to change with time or a similar parameter.

As nouns the difference between increase and vary

is that increase is an amount by which a quantity is increased while vary is alteration; change.

As verbs the difference between expand and switch

is that expand is (label) to change (something) from a smaller form and/or size to a larger one while switch is to exchange.

As a noun switch is

a device to turn electric current on]] and [[turn off|off or direct its flow.

As an adjective switch is

(snowboarding) riding with their opposite foot forward from their natural position bbc sport, [http://wwwbbccouk/sport/0/winter-olympics/26141070 "sochi 2014: a jargon-busting guide to the halfpipe"], 11 february 2014 .

As nouns the difference between jungle and mountain

is that jungle is a large, undeveloped, humid forest, especially in a tropical region, that is home to many wild plants and animals while mountain is a large mass of earth and rock, rising above the common level of the earth or adjacent land, usually given by geographers as above 1000 feet in height (or 304.8 metres), though such masses may still be described as hills in comparison with larger mountains.

Teem is a synonym of brim.

As verbs the difference between brim and teem

is that brim is to be full to overflowing while teem is to be stocked to overflowing.

As a noun brim

is the sea; ocean; water; flood.

As an adjective brim

is fierce; sharp; cold.

As adjectives the difference between radiographic and photographic

is that radiographic is of or pertaining to radiography while photographic is pertaining to photographs or photography.

As nouns the difference between winch and counterweight

is that winch is a machine consisting of a drum on an axle, a pawl, and a crank handle, with or without gearing, to give increased mechanical advantage when hauling on a rope while counterweight is a heavy mass of often iron or concrete, mechanically linked in opposition to a load which is to be raised and lowered, with the intent of reducing the amount of work which must be done to effect the raising and lowering. Counterweights are used, for example, in cable-hauled elevators and some kinds of movable bridges (e.g. a bascule bridge).

As verbs the difference between winch and counterweight

is that winch is to use a winch while counterweight is to fit with a counterweight.

As nouns the difference between endurance and agility

is that endurance is the measure of a person's stamina or persistence while agility is the quality of being agile; the power of moving the limbs quickly and easily; nimbleness; activity; quickness of motion; as, strength and agility of body.

As adjectives the difference between bidimensional and twodimensional

is that bidimensional is two-dimensional while twodimensional is an alternative spelling of two-dimensional.

As nouns the difference between conflicts and contradictions

is that conflicts is plural of lang=en while contradictions is plural of contradiction.

As a verb conflicts

is third-person singular of conflict.

As adjectives the difference between tropical and dense

is that tropical is of or north and 23 degrees south while dense is having relatively high density.

As a noun tropical

is a tropical plant.