ajarvsATAWhich spelling fits?

Quick tell: ajar is a adverb, ATA is a noun, so they fill different roles in a sentence.

Which to use

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

#48,584
“ajar” frequency rank
#27,369
“ATA” frequency rank
75953
confusion score

Side-by-Side Comparison

Feature ajar ATA
Definition Slightly turned or opened. Advanced Technology Attachment; a computer bus technology primarily designed for transfer of data to and from a hard disk. (Renamed PATA when SATA came into existence to more clearly distinguish the two.)

Letter map: ajar vs ATA

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

4 ch
ajar
3 ch
ATA

Grammar separator: ajar vs ATA

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ajar is anadverb and ATAanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 75953, derived from the frequency rank of both members and their visual similarity.

ajar is recorded at frequency rank #48,584, classified as anadv, pronounced /əˈd͡ʒɑː/. ATA is at rank #27,369, 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 75953, this pair ranks #31,560 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ajar vs ATA

Shared letters: a. Private to "ajar": jr. Private to "ATA": t.

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

Known mistypes of this pair

  • ajaraajr · ajarr · ajjar · ajra · jaar

Frequently Asked Questions

Is swapping "ajar" for "ATA" ever safe?
No - they are not even the same part of speech. "ajar" is an adverb and "ATA" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ajar" or "ATA"?
"ATA" is the more common of the two: it sits at frequency rank #27,369 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.

What to do next

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

  • Full dictionary entry for "ajar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ATA" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #31,560 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ajar" and "ATA" 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 #31,560 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