# ATP vs auth

> English confusable word pair

## The two words

### ATP
*name · frequency rank #14,694*
Initialism of Association of Tennis Professionals: the governing body of men's professional tennis, formed in 1972.

### auth
*noun · frequency rank #30,696*
Abbreviation of authentication.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/atp-vs-auth