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"Teína" is a noun which is often translated as "theine", and "cafeína" is a noun which is often translated as "caffeine". Learn more about the difference between "teína" and "cafeína" below.
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
