Grotto vs. Cavern

Grottonoun

A small cave.

Cavernnoun

A large cave.

Grottonoun

An artificial cavern-like retreat.

Cavernnoun

An underground chamber.

Grottonoun

A Marian shrine, usually built in a cavern-like structure.

Cavernverb

(transitive) To form a cavern or deep depression in.

‘catacombs caverning the hillsides’;

Grottonoun

A local organization of cavers that typically organizes trips to caves and provides information and training for caving; a caving club.

Cavernverb

(transitive) To put into a cavern.

Grottonoun

A secretive name for a local group of underground Satanists.

Cavernnoun

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

Grottonoun

A natural covered opening in the earth; a cave; also, an artificial recess, cave, or cavernlike apartment.

Cavernnoun

any large dark enclosed space;

‘his eyes were dark caverns’;

Grottonoun

a small cave (usually with attractive features)

Cavernnoun

a large cave or a large chamber in a cave

Grotto

A grotto is a natural or artificial cave used by humans in both modern times and antiquity, and historically or prehistorically. Naturally occurring grottoes are often small caves near water that are usually flooded or liable to flood at high tide.

Cavernverb

hollow out as if making a cavern

Cavernnoun

a large cave or chamber in a cave.

Cavernnoun

a large, dark place or space

‘a dark cavern of a shop’;