# arc vs as

> English confusable word pair

## The two words

### arc
*noun · IPA /ɑːk/ · frequency rank #5,005*
That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon.

### as
*adverb · IPA /əz/ · frequency rank #18*
To such an extent or degree; to the same extent or degree.

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