English · Word Candidate

submarine

/sʌb.məˈɹiːn/

Proposed by a contributor, not yet supported by evidence.

Also seen as: submarines · submarining · submarined

Sense 1

Meaning · English

Being, relating to, or made for use underwater, especially beneath the sea.

Adjective

Near-synonym: submerged (synonymous in "being underwater" sense)

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Meaning · English

Hidden or undisclosed.

Adjective

a submarine patent

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Meaning · English

A boat that can go underwater.

Noun

Me: *staring out window* looks like rain Submarine captain: what Me: but like more

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Meaning · English

A pitch delivered with an underhand motion.

Noun

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

What does “submarine” mean?

Being, relating to, or made for use underwater, especially beneath the sea.

Is “submarine” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.