equivalent (EN)

adjective, noun

adjective “equivalent”

1. equal in value, meaning, or effect
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   His silence was equivalent to an admission of guilt.
2. (mathematics) having the same value or function; having a one-to-one correspondence
   In mathematics, two sets are equivalent if they have the same number of elements.
3. (cartography) (of a map) equal-area
   The map uses an equivalent projection to accurately represent area.

noun “equivalent”

1. something that is equal in value, function, or meaning to something else
   A mile is approximately the equivalent of 1.6 kilometers.
2. (chemistry) the amount of a substance that reacts with a fixed amount of another substance
   The chemist added one equivalent of reactant to the solution.