Definitions For Variable

noun

• A quantity that can assume any of a set of values
• 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
• Something that changes or that can be changed : something that varies
• A quantity that can have any one of a set of values or a symbol that represents such a quantity

adjective

• (used of a device) designed so that a property (as e.g. light) can be varied
• Marked by diversity or difference

adjective

• Liable to or capable of change