Grotto vs. Cavern — What's the Difference?

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.

A large cave or chamber in a cave.

A small cave or cavern.

A large cave.

An artificial structure or excavation made to resemble a cave or cavern.

A large underground chamber, as in a cave.

A small cave.

To enclose in or as if in a cavern.

An artificial cavern-like retreat.

To hollow out.

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

A large cave.

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

An underground chamber.

(Satanism) A secretive name for a local group of underground Satanists.

A large, dark place or space.

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

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

A small cave (usually with attractive features)

(transitive) To put into a cavern.

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

Any large dark enclosed space;

A large cave or a large chamber in a cave

Hollow out as if making a cavern