# am vs ar

> Portuguese confusable word pair

## The two words

### am
*article · frequency rank #2,705*
o / a usado com substantivos masculinos no caso nominativo singular quando a palavra começar com as letra b, f, m, p

### ar
*noun · frequency rank #613*
fluido gasoso que envolve todo o planeta Terra; atmosfera

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