(noun, adjective)


1. liable to or capable of change

- rainfall in the tropics is notoriously variable

- variable winds

- variable expenses

Similar word(s): inconsistent, inconstant, changeable, uncertain, unsettled, covariant, multivariate, protean, shifting, variant, versatile

2. marked by diversity or difference

- nature is infinitely variable

Similar word(s): varied, 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

Similar word(s): adaptable

Sentences with variable as an adjective:

- variable winds or seasons; a variable quantity


1. something that is likely to vary; something that is subject to variation

- the weather is one variable to be considered

Definition categories: object, thing

2. a quantity that can assume any of a set of values

Definition categories: thought, quantity

3. a star that varies noticeably in brightness

Definition categories: object, star

4. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

Definition categories: communication, symbol

Sentences with variable as a noun:

- There are several variables to consider here.