variable -- (something that is likely to vary; something that is subject to variation; "the weather is one variable to be considered")
variable, variable quantity -- (a quantity that can assume any of a set of values)
variable star, variable -- (a star that varies noticeably in brightness)
variable -- (a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity)
Overview of adj variable
The adj variable has 3 senses
variable -- (liable to or capable of change; "rainfall in the tropics is notoriously variable"; "variable winds"; "variable expenses")
varying, variable -- (marked by diversity or difference; "the varying angles of roof slope"; "nature is infinitely variable")
variable -- ((used of a device) designed so that a property (as e.g. light) can be varied; "a variable capacitor"; "variable filters in front of the mercury xenon lights")