variation

As nouns the difference between concession and variation

is that concession is the act of conceding, especially that of defeat while variation is the act of varying; a partial change in the form, position, state, or qualities of a thing.

As a verb concession

is to grant or approve by means of a concession agreement.

As a noun variation

is variation.

As an adjective approximate is

approaching; proximate; nearly resembling.

As a verb approximate is

to carry or advance near; to cause to approach.

As nouns the difference between variation and estimate

is that variation is variation while estimate is a rough calculation or guess.

As a verb estimate is

to calculate roughly, often from imperfect data.

Variation is a related term of reformation.

As a noun variation

is variation.

As a proper noun reformation is

the reformation.

As nouns the difference between oscillation and variation

is that oscillation is the act of oscillating or the state of being oscillated while variation is variation.

Variation is a related term of revolution.

As nouns the difference between variation and revolution

is that variation is variation while revolution is revolution.

Switch is a related term of variation.

As nouns the difference between switch and variation

is that switch is a device to turn electric current on]] and [[turn off|off or direct its flow while variation is variation.

As a verb switch

is to exchange.

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 .