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"El teléfono" is a form of "teléfono", a noun which is often translated as "telephone". "Arturo" is a proper noun which is often translated as "Arthur". Learn more about the difference between "el teléfono" and "Arturo" below.
el teléfono(
teh
-
leh
-
foh
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noh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).