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"Pelo" is a form of "pelo", a noun which is often translated as "hair". "Piel" is a noun which is often translated as "skin". Learn more about the difference between "pelo" and "piel" below.
el pelo()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
3. (colloquial) (a little)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
la piel()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (epidermis)