ADAvsajarConfusable pair

Quick tell: ADA is a name, ajar is an adverb, so they fill different roles in a sentence.

Which to use

“ADA” is a name and “ajar” is an adverb - they look or sound alike but fill different roles in a sentence.

#10,976
“ADA” frequency rank
#48,584
“ajar” frequency rank
59560
confusion score

Side-by-Side Comparison

Feature ADA ajar
Definition Initialism of American Dental Association. Slightly turned or opened.

Letter map: ADA vs ajar

Shared letters muted; letters that set ADA and ajar apart highlighted. Shared run: 2.

3 ch
ADA
4 ch
ajar

Role in the sentence - ADA and ajar

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ADA is aname and ajaranadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 59560, derived from the frequency rank of both members and their visual similarity.

ADA is recorded at frequency rank #10,976, classified as aname. ajar is at rank #48,584, tagged as anadv, pronounced /əˈd͡ʒɑː/.

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 59560, this pair ranks #105,414 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ADA vs ajar

Shared letters: a. Private to "ADA": d. Private to "ajar": jr.

"ADA" · 3 letters · shape VCV  ·  "ajar" · 4 letters · shape VCVC

Known mistypes of this pair

  • ajaraajr · ajarr · ajjar · ajra · jaar

Frequently Asked Questions

Is swapping "ADA" for "ajar" ever safe?
No - they are not even the same part of speech. "ADA" is a name and "ajar" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ADA" or "ajar"?
"ADA" is the more common of the two: it sits at frequency rank #10,976 in our English list, against #48,584 for "ajar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "ADA" and "ajar".

  • Full dictionary entry for "ADA" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ajar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #105,414 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ADA" and "ajar" also get mixed up with nearby pairs, the highest-scored neighbour is "ajar vs Amari". 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 #105,414 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