Meaning & use
variable
A symbol that represents a value that may change or is not yet known.
See it in a sentence
In x + 4 = 9, the variable x represents 5.
We used the variable t for the number of minutes.
A note on using this word
In an equation, a variable may have a value to solve for; in a formula, it can stand for many possible values.
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. noun
A characteristic or quantity that can have different values in an investigation.
Water temperature was the variable we changed in the experiment.
Make it your own
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