# onto vs OST

> English confusable word pair

## The two words

### onto
*preposition · IPA /ˈɒn.tuː/ · frequency rank #1,768*
Arriving upon or on top of (speaking of a physical or metaphorical movement).

### OST
*noun · frequency rank #21,603*
Initialism of original soundtrack.

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