Skip to the word

Added 9 October 2026

submarine

/sʌb.məˈɹiːn/ adjective

In Latin: submarina Wiktionary

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about submarine at Wordnik → Where our words come from →

Being, relating to, or made for use underwater, especially beneath the sea.
Hidden or undisclosed.
a submarine patent
Of a pitch, thrown with the hand lower than the elbow.

noun

A boat that can go underwater.
Alternative form of submarine sandwich.
A pitch delivered with an underhand motion.

verb

To operate or serve on a submarine.
To torpedo; to destroy with a sudden sneak attack.
To sink or submerge oneself.

Back to today's word