Which to use
“ASIC” is a noun and “ASTM” is a name - they look or sound alike but fill different roles in a sentence.
- #34,383
- “ASIC” frequency rank
- #31,068
- “ASTM” frequency rank
- 65451
- confusion score
Side-by-Side Comparison
| Feature | ASIC | ASTM |
|---|---|---|
| Definition | Acronym of application-specific integrated circuit. | Initialism of American Society for Testing and Materials; former name of ASTM International. |
Letter map: ASIC vs ASTM
Shared letters muted; letters that set ASIC and ASTM apart highlighted. Shared run: 2.
Role in the sentence - ASIC and ASTM
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ASIC is anoun and ASTManame. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 65451, derived from the frequency rank of both members and their visual similarity.
ASIC is recorded at frequency rank #34,383, classified as anoun, pronounced /ˈeɪ.sɪk/. ASTM is at rank #31,068, 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 65451, this pair ranks #72,676 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of ASIC vs ASTM
Shared letters: as. Private to "ASIC": ci. Private to "ASTM": mt.
"ASIC" · 4 letters · shape VCVC · "ASTM" · 4 letters · shape VCCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ASIC" for "ASTM" ever safe?
In ordinary English text, does "ASIC" or "ASTM" show up more?
After this comparison
Done with this confusable. These links stay specific to "ASIC" and "ASTM".
- Full dictionary entry for "ASIC" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ASTM" - compare definitions side by side with the headword page. Word entry
- This pair ranks #72,676 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ASIC" and "ASTM" also get mixed up with nearby pairs, the highest-scored neighbour is "ASIC vs Asta". 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 #72,676 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.