Which to use
“NTSB” and “NWS” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #39,935
- “NTSB” frequency rank
- #40,363
- “NWS” frequency rank
- 80298
- confusion score
Side-by-Side Comparison
| Feature | NTSB | NWS |
|---|---|---|
| Definition | Initialism of National Transportation Safety Board. | Initialism of National Weather Service. |
Letter map: NTSB vs NWS
Shared letters muted; letters that set NTSB and NWS apart highlighted. Shared run: 2. NTSB runs 4 letters (CCCC) against NWS's 3 (CCC) - the length gap alone is often enough to separate them once you know to check it.
Corpus notes: NTSB and NWS
NTSB and NWS are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 80298, derived from the frequency rank of both members and their visual similarity.
NTSB is recorded at frequency rank #39,935, classified as aname. NWS is at rank #40,363, 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 80298, this pair ranks #20,096 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of NTSB vs NWS
Shared letters: ns. Private to "NTSB": bt. Private to "NWS": w.
"NTSB" · 4 letters · shape CCCC · "NWS" · 3 letters · shape CCC
Known mistypes of this pair
- NTSB ← nntsb · nstb · ntbs · ntsbb · ntssb · nttsb · tnsb
Frequently Asked Questions
Is swapping "NTSB" for "NWS" ever safe?
Which is more common, "NTSB" or "NWS"?
What to do next
Done with this confusable. These links stay specific to "NTSB" and "NWS".
- Full dictionary entry for "NTSB" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "NWS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,096 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "NTSB" and "NWS" also get mixed up with nearby pairs, the highest-scored neighbour is "NPL vs NWS". 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 #20,096 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.