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"Caverna" is a noun which is often translated as "cave", and "guarida" is a noun which is often translated as "lair". Learn more about the difference between "caverna" and "guarida" below.
la caverna()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
la guarida()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).