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"Lifelong" is an adjective which is often translated as "de toda la vida", and "whole life" is a noun which is often translated as "toda la vida". Learn more about the difference between "lifelong" and "whole life" below.
lifelong(
layf
-
lang
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. de toda la vida
Sarah and I are lifelong friends.Sarah y yo somos amigas de toda la vida.
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whole life(
hol
 
layf
)
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
noun
a. toda la vida
Sarah lived in the same small town her whole life.Sarah vivió en la misma pequeña ciudad toda la vida.
b. la vida entera
(f) means that a noun is feminine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
(F)
I love you. You are my whole life.Te amo. Eres mi vida entera.
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