# XVIIIth

> English word · Adjective

## Definitions
1. Abbreviation of eighteenth; 18th.

## Etymology
From XVIII (Roman numeral representing eighteen) + -th (ordinal suffix).

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