variable

US /ˈver.i.ə.bəl/
UK /ˈver.i.ə.bəl/
"variable" picture
1.

not consistent or having a fixed pattern; liable to change

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The weather here is highly variable.
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The cost of living is variable depending on the city.
:
changeablefluctuatingunstableinconstanterratic
1.

a factor or quantity that can vary or be varied

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In this experiment, temperature is a key variable.
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The program allows users to define their own variables.
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factorelementparameterquantity
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dependent variable