ōceanus
masculine
The Latin word for ocean is ōceanus.
The term ōceanus refers to one of the large bodies of water. For a more metaphorical or descriptive sense, one might use aequor, which refers to an expansive, flat surface often associated with the sea.
Meaning: one of the large bodies of water (noun)
Which one should you use?
While ōceanus specifically refers to the great ocean, the word mare is more commonly used to refer to a sea or a general body of water.
How does it change in a sentence?
The masculine noun ōceanus changes its form depending on its role in a sentence: ōceanī is the genitive singular form, meaning "of the ocean" and ōceanōs is the accusative plural form, meaning "oceans".
Did you know?
- The word mare is the ancestor of the English word 'marine', but it is also used in astronomy to name the dark plains on the moon.
- In Roman mythology, Ōceanus was not just a body of water but a personified Titan who encircled the entire world. This personification meant that to a Roman, the ocean was a living, divine entity rather than a geographical feature.
- The Latin word aequor shares its root with aequus, meaning 'equal' or 'level', because the ocean's surface looked perfectly flat to the ancient eye.
Examples in context
- Ōceanus est vastus.The ocean is vast.
Example conversation
Gaius and Claudia are looking at a map of the world.
- GaiusQuid est hic ōceanus?What is this ocean?
- ClaudiaHic est ōceanus Atlanticus.This is the Atlantic ocean.
- GaiusEstne ōceanus periculosus?Is the ocean dangerous?
- ClaudiaIta, ōceanus semper periculosus est.Yes, the ocean is always dangerous.
Sources
- Wiktionary, “ocean” translations, CC BY-SA 4.0, dump of 2026-09-26.
