namesvsNASWhat's the difference?

Quick tell: names is a noun, NAS is a name, so they fill different roles in a sentence.

Which to use

“names” is a noun and “NAS” is a name - they look or sound alike but fill different roles in a sentence.

#1,314
“names” frequency rank
#14,372
“NAS” frequency rank
15686
confusion score

Side-by-Side Comparison

Feature names NAS
Definition plural of name Initialism of National Academy of Sciences (US).

Letter map: names vs NAS

Shared letters muted; letters that set names and NAS apart highlighted. Shared run: 3.

5 ch
names
3 ch
NAS

Part-of-speech tell for names / NAS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: names is anoun and NASaname. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 15686, derived from the frequency rank of both members and their visual similarity.

names is recorded at frequency rank #1,314, classified as anoun, pronounced /neɪmz/. NAS is at rank #14,372, tagged as aname.

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 15686, this pair ranks #462,453 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of names vs NAS

Shared letters: ans. Private to "names": em. Private to "NAS": -.

"names" · 5 letters · shape CVCVC  ·  "NAS" · 3 letters · shape CVC

Known mistypes of this pair

  • namesanmes · naems · namess · nammes · namse · nmaes · nnames

Frequently Asked Questions

Do "names" and "NAS" mean the same thing in a sentence?
No - they are not even the same part of speech. "names" is a noun and "NAS" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "names" or "NAS"?
"names" is the more common of the two: it sits at frequency rank #1,314 in our English list, against #14,372 for "NAS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "names" and "NAS". Here's where to go from here.

  • Full dictionary entry for "names" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "NAS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #462,453 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "names" and "NAS" also get mixed up with nearby pairs, the highest-scored neighbour is "NAS vs NPL". 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 #462,453 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