ASAvsashTell them apart

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

Which to use

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

#16,175
“ASA” frequency rank
#5,477
“ash” frequency rank
21652
confusion score

Side-by-Side Comparison

Feature ASA ash
Definition Initialism of Acoustical Society of America. Solid remains of a fire.

Letter map: ASA vs ash

Shared letters muted; letters that set ASA and ash apart highlighted. Shared run: 2.

3 ch
ASA
3 ch
ash

Part-of-speech tell for ASA / ash

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ASA is aname and ashanoun. On the page they differ by a single letter - a in “ASA” becomes h in “ash”. Our composite confusion score for this pair is 21652, derived from the frequency rank of both members and their visual similarity.

ASA is recorded at frequency rank #16,175, classified as aname. ash is at rank #5,477, tagged as anoun, pronounced /æʃ/.

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 21652, this pair ranks #422,352 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ASA vs ash

Shared letters: as. Private to "ASA": -. Private to "ash": h.

"ASA" · 3 letters · shape VCV  ·  "ash" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ASA" for "ash" ever safe?
No - they are not even the same part of speech. "ASA" is a name and "ash" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ASA" vs "ash" - which ranks higher?
"ash" is the more common of the two: it sits at frequency rank #5,477 in our English list, against #16,175 for "ASA". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "ASA" and "ash". Here's where to go from here.

  • Full dictionary entry for "ASA" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ash" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #422,352 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ASA" and "ash" also get mixed up with nearby pairs, the highest-scored neighbour is "ASA vs Asta". Nearby pair

Confusion rank #422,352 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