variation
//ˌvɛəriˈeɪʃən//
Noun
variationSingular
variationsPlural
1
A change or difference in condition, amount, or level, typically within certain limits.
There is considerable variation in temperature between day and night.
2
A different or distinct form or version of something.
This dish is a variation of the traditional recipe.
3
A musical composition based on a theme that is repeated in a modified or embellished form.
Mozart's variations on 'Twinkle, Twinkle, Little Star' are beloved by piano students.
4
The extent to which something changes or differs from a standard or norm.
There is considerable variation in temperature between day and night.