submarine

UK: ˌsʌbməˈriːn | US: ˌsʌbməˈriːn

Definition

  1. n. A watercraft capable of operating underwater.

  2. adj. Existing, occurring, or used underwater.

Structure
sub <under>marine <sea>
Etymology

The word "submarine" combines Latin roots to literally mean "under the sea." Sub was a common prefix in Latin for "below," while marine derives from mare (sea). The term emerged in the 17th century to describe underwater vessels, reflecting its logical construction from these two morphemes.

Examples

  1. The navy deployed a submarine to patrol the coast.

  2. Submarine cables connect continents for internet communication.

  3. Scientists study submarine volcanoes to understand tectonic activity.

  4. The submarine dove deep to avoid detection.

  5. Submarine ecosystems are rich in biodiversity.