- [noun] something that is likely to vary; something that is subject to variation; "the weather is one variable to be considered"
- [noun] a quantity that can assume any of a set of values
- [noun] a star that varies noticeably in brightness
- [noun] a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
- [adjective] liable to or capable of change; "rainfall in the tropics is notoriously variable"; "variable winds"; "variable expenses"
- [adjective] marked by diversity or difference; "the varying angles of roof slope"; "nature is infinitely variable"
- [adjective] (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"
independent variable, experimental variable
- degree of freedom
- dependent variable
- predictor variable
random variable, variate, variant, stochastic variable, chance variable
Polaris, North Star, pole star, polar star, polestar
unknown, unknown quantity