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"El" is a form of "el", a definite article which is often translated as "the". "Museo" is a noun which is often translated as "museum". Learn more about the difference between "museo" and "el" below.
el museo(
moo
-
seh
-
oh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
el(
ehl
)A definite article is a word that identifies a noun as specific or known to the speaker (e.g., the girl).