Meaning : Something that is likely to vary. Something that is subject to variation.
Example :
The weather is one variable to be considered.
Meaning : A quantity that can assume any of a set of values.
Synonyms : variable quantity
Meaning : A star that varies noticeably in brightness.
Synonyms : variable star
Meaning : A symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity.
Meaning : Liable to or capable of change.
Example :
Rainfall in the tropics is notoriously variable.
Variable winds.
Variable expenses.
Not liable to or capable of change.
An invariable temperature.Meaning : Marked by diversity or difference.
Example :
The varying angles of roof slope.
Nature is infinitely variable.
Synonyms : varying
Meaning : (used of a device) designed so that a property (as e.g. light) can be varied.
Example :
A variable capacitor.
Variable filters in front of the mercury xenon lights.