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"Manzanas" is a form of "manzana", a noun which is often translated as "apple". "Naranjas" is a form of "naranja", a noun which is often translated as "orange". Learn more about the difference between "manzanas" and "naranjas" below.
la manzana(
mahn
-
sah
-
nah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
la naranja(
nah
-
rahng
-
hah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).