sea monster

noun

plural sea monsters

: a mythical creature of usually immense size that lives underwater and is traditionally regarded as a threat to ships and mariners

In Norway and Iceland, legend has it that the Kraken, a giant sea monster similar to a squid or octopus, is lurking in local seas, only to occasionally rise and go on a rampage.

—Etan Vlessing

Examples of sea monster in a Sentence

Recent Examples on the Web

But still, when beloved attractions starring The Muppets, vikings or an 80-foot sea monster leave the parks to make way for contemporary makeovers, people have feelings about it. — Julie Tremaine, PEOPLE, 3 Sep. 2026

Local residents first started reporting sightings of a sea monster in these parts—Gloucester’s own Nessie—as early as 1638. — Nicholas Derenzo, Travel + Leisure, 25 Aug. 2026

Then there are the Sirens and the sea monsters Scylla and Charybdis. — Harmeet Kaur, CNN Money, 23 July 2026

Odysseus encounters a cyclops, sea monsters, and a sorceress who transforms men into animals, all rendered with minimal CGI and maximum ambition. — Eliana Dockterman, Time, 12 May 2026

Word History

First Known Use

1568, in the meaning defined above