# trillionth

> English word · Adjective · IPA /ˈtɹɪl.i.ənθ/

## Definitions
1. The ordinal form of the number one trillion.

## Etymology
From trillion + -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/trillionth