AIS vs alc, What's the Difference?

Which to use

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

#26,670
“AIS” frequency rank: #49,757
“alc” frequency rank: 76427
confusion score

Side-by-Side Comparison

Feature	AIS	alc
Definition	Initialism of automatic identification system, as an element of the Global Marine Distress and Safety System GMDSS.	Abbreviation of alcohol.

Where the spellings diverge

Shared letters are muted; the letters that actually set AIS and alc apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch

AIS

3 ch

alc

Spelling & Dictionary Insight

AIS and alc 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 76427, derived from the frequency rank of both members and their visual similarity.

AIS is recorded at frequency rank #26,670, classified as anoun, pronounced /ˈeɪ ˈaɪ ˈɛs/. alc is at rank #49,757, tagged as anoun.

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 76427, this pair ranks #30,169 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of AIS vs alc

Shared letters: a. Private to "AIS": is. Private to "alc": cl.

"AIS" · 3 letters · shape VVC · "alc" · 3 letters · shape VCC

Frequency comparison

AIS#26,670

alc#49,757

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "AIS" and "alc" be used interchangeably?

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.

Which is more common, "AIS" or "alc"?

"AIS" is the more common of the two: it sits at frequency rank #26,670 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.

Remembering AIS vs alc

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “AIS” entry
Browse more pairs most likely to be confused. Most confusable