functionalityvsfunctionallyWhat's the difference?

Quick tell: functionality is a noun, functionally is an adverb, so they fill different roles in a sentence.

Which to use

“functionality” is a noun and “functionally” is an adverb - they look or sound alike but fill different roles in a sentence.

#11,216
“functionality” frequency rank
#22,679
“functionally” frequency rank
33895
confusion score

Side-by-Side Comparison

Feature functionality functionally
Definition The ability to do a task, performance, or execution; a set of functions that something is able or equipped to perform. In a functional manner.

Letter map: functionality vs functionally

Shared letters muted; letters that set functionality and functionally apart highlighted. Shared run: 11.

13 ch
functionality
12 ch
functionally

Grammar separator: functionality vs functionally

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: functionality is anoun and functionallyanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 33895, derived from the frequency rank of both members and their visual similarity.

functionality is recorded at frequency rank #11,216, classified as anoun. functionally is at rank #22,679, tagged as anadv.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 33895, this pair ranks #325,458 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of functionality vs functionally

Shared letters: acfilnotuy. Private to "functionality": -. Private to "functionally": -.

"functionality" · 13 letters · shape CVCCCVVCVCVCV  ·  "functionally" · 12 letters · shape CVCCCVVCVCCV

Known mistypes of this pair

  • functionalityffunctionality · fnuctionality · fucntionality · funcctionality · funcitonality · functinoality · functioanlity · functionailty
  • functionallyffunctionally · fnuctionally · fucntionally · funcctionally · funcitonally · functinoally · functioanlly · functionallyy

Frequently Asked Questions

Can "functionality" and "functionally" be used interchangeably?
No - they are not even the same part of speech. "functionality" is a noun and "functionally" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "functionality" or "functionally"?
"functionality" is the more common of the two: it sits at frequency rank #11,216 in our English list, against #22,679 for "functionally". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "functionality" and "functionally".

  • Full dictionary entry for "functionality" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "functionally" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #325,458 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "functionality" and "functionally" also get mixed up with nearby pairs, the highest-scored neighbour is "functional vs functionally". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #325,458 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list