"variables" in the noun sense
something that is likely to vary something that is subject to variation
"the weather is one variable to be considered"
2. variable, variable quantity
a quantity that can assume any of a set of values
3. variable star, variable
a star that varies noticeably in brightness
a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
Source: WordNet® (An amazing lexical database of English)
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