variation

Sense 1 noun

an instance of change; the rate or magnitude of change

Sense 2 noun

an activity that varies from a norm or standard

any variation in his routine was immediately reported

Sense 3 noun

a repetition of a musical theme in which it is modified or embellished

Sense 4 noun

something a little different from others of the same type

an experimental version of the night fighter

Sense 5 noun

an artifact that deviates from a norm or standard

he patented a variation on the sandal

Sense 6 noun

the angle (at a particular location) between magnetic north and true north

Sense 7 noun

the process of varying or being varied

Sense 8 noun

(astronomy) any perturbation of the mean motion or orbit of a planet or satellite (especially a perturbation of the earth's moon)

Sense 9 noun

(biology) an organism that has characteristics resulting from chromosomal alteration

Sense 10 noun

(ballet) a solo dance or dance figure

Sense 11 noun

the act of changing or altering something slightly but noticeably from the norm or standard

who is responsible for these variations in taxation?