# add vs ai

> English confusable word pair

## The two words

### add
*verb · IPA /æd/ · frequency rank #840*
To join or unite (e.g. one thing to another, or as several particulars) so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate.

### ai
*noun · IPA /ˈɑ.i/ · frequency rank #4,818*
A type of three-toed sloth, Bradypus tridactylus, endemic to forests of southern Venezuela, the Guianas, and northern Brazil.

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