Usage Note
Submarino functions both as a noun (the vessel) and as an adjective (cable submarino, 'submarine cable'). In Argentina and Uruguay, a submarino is also a hot drink made by submerging a bar of chocolate in warm milk — a decidedly non-military usage. The prefix sub- (under) + marino (marine) makes the word fully transparent.
Examples
"El submarino navegó bajo el océano."
Natural Translation
The submarine navigated under the ocean.

Free starter pack
Building your Spanish vocabulary?
Get the 100 most common Spanish words as a free PDF — one email, no spam.
Related Words
Explore Spanish by topic
SpanishNow
6 min read