# then vs TN

> English confusable word pair

## The two words

### then
*adverb · IPA /ðɛn/ · frequency rank #91*
At that time.

### TN
*noun · frequency rank #11,138*
Abbreviation of telephone number.

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