nbspvsNSAWhat's the difference?

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

Which to use

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

#25,856
“nbsp” frequency rank
#8,834
“NSA” frequency rank
34690
confusion score

Side-by-Side Comparison

Feature nbsp NSA
Definition Initialism of non-breaking space. Initialism of no strings attached.

Letter map: nbsp vs NSA

Shared letters muted; letters that set nbsp and NSA apart highlighted. Shared run: 2. nbsp runs 4 letters (CCCC) against NSA's 3 (CCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
nbsp
3 ch
NSA

Part-of-speech tell for nbsp / NSA

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: nbsp is anoun and NSAanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 34690, derived from the frequency rank of both members and their visual similarity.

nbsp is recorded at frequency rank #25,856, classified as anoun. NSA is at rank #8,834, tagged as anadv, pronounced /ˈɛn.ɛs.eɪ/.

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 34690, this pair ranks #318,581 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of nbsp vs NSA

Shared letters: ns. Private to "nbsp": bp. Private to "NSA": a.

"nbsp" · 4 letters · shape CCCC  ·  "NSA" · 3 letters · shape CCV

Known mistypes of this pair

  • nbsp ← bnsp · nbbsp · nbps · nbspp · nbssp · nnbsp · nsbp

Frequently Asked Questions

Is swapping "nbsp" for "NSA" ever safe?
No - they are not even the same part of speech. "nbsp" is a noun and "NSA" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "nbsp" or "NSA" show up more?
"NSA" is the more common of the two: it sits at frequency rank #8,834 in our English list, against #25,856 for "nbsp". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "nbsp" vs "NSA" is on the table, pick a follow-up below.

  • Full dictionary entry for "nbsp" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "NSA" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #318,581 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "nbsp" and "NSA" also get mixed up with nearby pairs, the highest-scored neighbour is "Nasr vs nbsp". 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 #318,581 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