(n)version, variant, variation, editionsomething a little different from others of the same type“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”
(n)variationthe act of changing or altering something slightly but noticeably from the norm or standard“who is responsible for these variations in taxation?”
