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"Defunción" is a noun which is often translated as "death", and "fallecimiento" is a noun which is also often translated as "death". Learn more about the difference between "defunción" and "fallecimiento" below.
la defunción()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
el fallecimiento()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
