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"Cientos" is a form of "cientos", a plural noun which is often translated as "hundreds". "Miles" is a form of "mil", an adjective which is often translated as "thousand". Learn more about the difference between "cientos" and "miles" below.
mil(
meel
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
