vs
QUICK ANSWER
"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(
deh
-
foon
-
syohn
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
el fallecimiento(
fah
-
yeh
-
see
-
myehn
-
toh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).