# sub-lieutenant

> English word · Noun

## Definitions
1. A commissioned officer of the navy whose rank is immediately below that of a lieutenant.
2. A commissioned officer of the navy whose rank is immediately below that of a lieutenant.

## Etymology
From sub- + lieutenant.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sub-lieutenant