variation
nounUK /ˌveəriˈeɪʃn/
US /ˌveriˈeɪʃn/
A variation is a change or difference in something.
The cake recipe has a chocolate variation that my kids love.
OTHER MEANINGS
2. A slightly different form of a song, dance, or piece of music.
The band played a jazz variation of the famous tune.
3. A change in amount or level, especially in measurements or conditions.
There was a small variation in temperature between day and night.
4. A difference in a living thing that makes it different from others of its kind.
The white fur is a natural variation in this type of rabbit.
5. The act of changing or being changed.
The variation in prices made shopping confusing.