1 [uncountable and countable]
a difference between similar things, or a change from the usual amount or form of something
White bread is really just a variation of French bread.
variations in the quality of the rugs
The study concluded that the variation between the CD players was very small.
something that is done in a way that is different from the way it is usually done:
Most of his poems are variations on the theme of love.
one of a set of short pieces of music, each based on the same simple tune:
Bach's Goldberg variations