say it: at-LAN-tis
atlantis is a noun meaning "according to legend, an island in the Atlantic Ocean that Plato said was swallowed by an earthquake". It carries one recorded sense.
according to legend, an island in the Atlantic Ocean that Plato said was swallowed by an earthquake
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for atlantis come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.