# final frontier

> English word · Noun

## Definitions
1. Synonym of outer space.

## Etymology
From the introductory voice-over of Star Trek: The Original Series: "Space, the final frontier..."

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