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"Cien" is a form of "cien", an adjective which is often translated as "one hundred". "Dos" is a form of "dos", an adjective which is often translated as "two". Learn more about the difference between "cien" and "dos" below.
cien(
syehn
)An adjective is a word that describes a noun (e.g., the big dog).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
dos(
dohs
)An adjective is a word that describes a noun (e.g., the big dog).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (number)