variation

(noun) an instance of change; the rate or magnitude of change. Synonyms: fluctuation.

(noun) an activity that varies from a norm or standard. Synonyms: variance. Example: "Any variation in his routine was immediately reported."

(noun) a repetition of a musical theme in which it is modified or embellished.

(noun) something a little different from others of the same type. Synonyms: version, variant, edition. Examples: "An experimental version of the night fighter." "A variant of the same word." "An emery wheel is the modern variation of a grindstone." "The boy is a younger edition of his father."

(noun) an artifact that deviates from a norm or standard. Example: "He patented a variation on the sandal."

(noun) the angle (at a particular location) between magnetic north and true north. Synonyms: magnetic declination, magnetic variation.

(noun) the process of varying or being varied.

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

(noun) (biology) an organism that has characteristics resulting from chromosomal alteration. Synonyms: mutant, mutation, sport.

(noun) (ballet) a solo dance or dance figure. Synonyms: pas seul.

(noun) the act of changing or altering something slightly but noticeably from the norm or standard. Example: "Who is responsible for these variations in taxation?."