A lot vs. Alot: 9 Grammatical Pitfalls
variable var·i·a·ble (vâr'ē-ə-bəl, vār'-)
Likely to change or vary; subject to variation; changeable.
Tending to deviate, as from a normal or recognized type; aberrant.
Having no fixed quantitative value.
Something that varies or that is prone to variation.
A quantity that is capable of assuming any of a set of values.