variation

the act, process, or accident of varying in condition, character, or degree.

Prices are subject to variation.

Synonyms:

difference, divergence, deviation, modification, alteration, mutation

an instance of this.

There is a variation in the quality of fabrics in this shipment.

amount, rate, extent, or degree of change.

a temperature variation of 40° in a particular climate.

a different form of something; variant.

Music.

1. the transformation of a melody or theme with changes or elaborations in harmony, rhythm, and melody.

2. a varied vary form of a melody or theme, especially one of a series of such forms developing the capacities of the subject.

Ballet. a solo dance, especially one forming a section of a pas de deux.

Astronomy. any deviation from the mean orbit of a heavenly body, especially of a planetary or satellite orbit.

Also called magnetic declination,.  Also called magnetic variation.  Navigation. the angle between the geographic and the magnetic meridian at a given point, expressed in plus degrees east or minus degrees west of true north.

Biology. a difference or deviation in structure or character from others of the same species or group.

the act, process, condition, or result of changing or varying; diversity

an instance of varying or the amount, rate, or degree of such change

something that differs from a standard or convention

music

1. a repetition of a musical theme in which the rhythm, harmony, or melody is altered or embellished

2. ( as modifier )

   variation form

biology

1. a marked deviation from the typical form or function

2. a characteristic or an organism showing this deviation

astronomy any change in or deviation from the mean motion or orbit of a planet, satellite, etc, esp a perturbation of the moon

another word for magnetic declination

ballet a solo dance

linguistics any form of morphophonemic change, such as one involved in inflection, conjugation, or vowel mutation