alcvsAPIWhat's the difference?

Which to use

“alc” and “API” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,757
“alc” frequency rank
#11,501
“API” frequency rank
61258
confusion score

Side-by-Side Comparison

Feature alc API
Definition Abbreviation of alcohol. Initialism of active pharmaceutical ingredient.

Letter map: alc vs API

Shared letters muted; letters that set alc and API apart highlighted. Shared run: 1.

3 ch
alc
3 ch
API

Spelling & dictionary notes on alc vs API

alc and API 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 61258, derived from the frequency rank of both members and their visual similarity.

alc is recorded at frequency rank #49,757, classified as anoun. API is at rank #11,501, tagged as anoun, pronounced /ˌeɪˌpiˈaɪ/.

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 61258, this pair ranks #95,273 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of alc vs API

Shared letters: a. Private to "alc": cl. Private to "API": ip.

"alc" · 3 letters · shape VCC  ·  "API" · 3 letters · shape VCV

Frequently Asked Questions

Do "alc" and "API" mean the same thing in a sentence?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "alc" vs "API" - which ranks higher?
"API" is the more common of the two: it sits at frequency rank #11,501 in our English list, against #49,757 for "alc". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "alc" vs "API" is on the table, pick a follow-up below.

  • Full dictionary entry for "alc" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "API" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #95,273 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "alc" and "API" also get mixed up with nearby pairs, the highest-scored neighbour is "alc vs amb". Nearby pair

Confusion rank #95,273 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