Scylla vs. Charybdis: What's the Difference?

A female sea monster who lived in a cave opposite Charybdis and devoured sailors.

A whirlpool off the Sicilian coast, opposite the cave of Scylla.

A dangerous rock on the Italian coast opposite the whirpool Charybdis on the coast of Sicily, - both personified in classical literature as ravenous monsters. The passage between them was formerly considered perilous; hence, the saying "Between Scylla and Charybdis," signifying a great peril on either hand.

A dangerous whirlpool on the coast of Sicily opposite Scylla on the Italian coast. It is personified as a female monster. See Scylla.

(Greek mythology) a sea nymph transformed into a sea monster who lived on one side of a narrow strait; drowned and devoured sailors who tried to escape Charybdis (a whirlpool) on the other side of the strait

(Greek mythology) a ship-devouring whirlpool lying on the other side of a narrow strait from Scylla