# functionality vs functionally

> English confusable word pair

## The two words

### functionality
*noun · frequency rank #11,216*
The ability to do a task, performance, or execution; a set of functions that something is able or equipped to perform.

### functionally
*adverb · frequency rank #22,679*
In a functional manner.

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