"Spelunc" is a word in ENGLISH

A cavern.

A cavern or cavity, esp. an anatomical cavity or sinus

A cavern in a cliff, at the water level, opening to the air at its farther extremity, so that the …

A hollow place in the earth, either natural or artificial; a subterraneous cavity; a cavern; a den.

A large, deep, hollow place in the earth; a large cave.

Containing caverns.

Living in a cavern.

Filled with small cavities or cells.

Full of caverns; resembling a cavern or large cavity; hollow.

Having a sound caused by a cavity.

A small cavern or hollow place in the side of a hill, or among rocks; esp., a cave used by …

To become covered with a whitish crust or light crystallization, from a slow chemical change between some of the ingredients …

To bury, as it were in a womb; to hide, as in a gulf, pit, or cavern.

gíkab - Cave, cavern, hollow in the ground, den, applied as a rule to cavities larger than a "gíab” and …

Imperfectly illuminated; dismal through obscurity or darkness; dusky; dim; clouded; as, the cavern was gloomy.

A cavity, natural or artificial; an unfilled space within anything; a hole, a cavern; an excavation; as the hollow of …

Inclosed or shut up as in a cavern.

Between the cavernous sinuses; as, the intercavernous sinuses connecting the cavernous sinuses at the base of the brain.

English: cave, cavern Tagalog: yungib

A place, cavern, or pit where stone is taken from the rock or ledge, or dug from the earth, for …