variable (EN)

adjective, noun

adjective “variable”

1. likely to change or be changed; not consistent
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   The weather is variable in spring, sometimes sunny and sometimes rainy.
2. allowed to change; not fixed
   In physics equations, variable quantities like velocity can change over time.

noun “variable”

1. an element, feature, or factor that can change
   We need to consider all variables that might affect the outcome of the experiment.
2. (in mathematics) a quantity that can take on different values
   In the equation y = mx + b, x and y are variables representing numbers.
3. (in programming) a named area in memory to store data that can change during program execution
   The programmer initialized a variable to store the user's age.