variable meaning and definition

VARIABLE noun

Definition of variable (noun)

1. something that is likely to vary; something that is subject to variation
   • "the weather is one variable to be considered"
2. a quantity that can assume any of a set of values
   • synonyms: variable quantity
3. a star that varies noticeably in brightness
   • synonyms: variable star
4. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

VARIABLE adjective

Definition of variable (adjective)

1. liable to or capable of change
   • "rainfall in the tropics is notoriously variable"; "variable winds"; "variable expenses"
   • antonym: invariable
2. marked by diversity or difference
   • "the varying angles of roof slope"; "nature is infinitely variable"
   • synonyms: varying
3. (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"