variable vs predictor variable

predictor variable vs variable

variable and predictor variable both are nouns.

variable is an adjective but predictor variable is not an adjective.

Word	Noun	Adjective	Verb	Adverb
variable	Yes	Yes	No	No
predictor variable	Yes	No	No	No

As nouns, predictor variable is a hyponym of variable; that is, predictor variable is a word with a more specific, narrower meaning than variable:

variable: a quantity that can assume any of a set of values
predictor variable: a variable that can be used to predict the value of another variable (as in statistical regression)

Other hyponyms of variable include argument, experimental variable, independent variable, correlate, correlative, degree of freedom, dependent variable, infinitesimal, chance variable, random variable, stochastic variable, variant, variate, scalar, tensor, vector.

variable (noun)	predictor variable (noun)
a quantity that can assume any of a set of values	a variable that can be used to predict the value of another variable (as in statistical regression)
a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
something that is likely to vary; something that is subject to variation
a star that varies noticeably in brightness

variable (adjective)	predictor variable (adjective)
liable to or capable of change
(used of a device) designed so that a property (as e.g. light) can be varied
marked by diversity or difference

Difference between variable and predictor variable

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