Any of the principal divisions of the ocean, including the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.
Any of the large, low-lying dark areas on the Moon or on Mars or other inner planets. The lunar maria are believed to consist of volcanic basalts, and many are believed to be basins formed initially by large impacts with meteoroids and later filled with lava flows.
The sea; ocean
An area or realm:
Find another word for seas. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for seas, like: oceans, spumes, maria, gulfs, brines and lands.