say it: VER-ee-uh-buhl
variable is a noun and adjective meaning "something that is likely to vary; something that is subject to variation". It carries 7 recorded senses.
something that is likely to vary; something that is subject to variation
“the weather is one variable to be considered”
a quantity that can assume any of a set of values
a star that varies noticeably in brightness
a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity
liable to or capable of change
“rainfall in the tropics is notoriously variable”
“variable winds”
“variable expenses”
(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”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for variable come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.