AISvsallWhich spelling fits?

Quick tell: AIS is a noun, all is a determiner, so they fill different roles in a sentence.

Which to use

“AIS” is a noun and “all” is a determiner - they look or sound alike but fill different roles in a sentence.

#26,670
“AIS” frequency rank
#32
“all” frequency rank
26702
confusion score

Side-by-Side Comparison

Feature AIS all
Definition Initialism of automatic identification system, as an element of the Global Marine Distress and Safety System GMDSS. Every individual or anything of the given class, with no exceptions (the noun or noun phrase denoting the class must be plural or uncountable).

Where the eye mixes AIS and all

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
AIS
3 ch
all

Why the eye confuses AIS with all

These two trip readers on the page rather than in the ear: AIS is /ˈeɪ ˈaɪ ˈɛs/ while all is /ɔːl/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 26702, 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/. all is at rank #32, tagged as adet, pronounced /ɔːl/.

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 26702, this pair ranks #384,702 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of AIS vs all

Shared letters: a. Private to "AIS": is. Private to "all": l.

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

Frequently Asked Questions

Do "AIS" and "all" mean the same thing in a sentence?
No - they are not even the same part of speech. "AIS" is a noun and "all" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "AIS" or "all" show up more?
"all" is the more common of the two: it sits at frequency rank #32 in our English list, against #26,670 for "AIS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "AIS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "all" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #384,702 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "AIS" and "all" also get mixed up with nearby pairs, the highest-scored neighbour is "AIS vs amb". Nearby pair

Confusion rank #384,702 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