achevsahWhat's the difference?

Quick tell: ache is a verb, ah is an intj, so they fill different roles in a sentence.

Which to use

“ache” is a verb and “ah” is an intj - they look or sound alike but fill different roles in a sentence.

#16,397
“ache” frequency rank
#2,325
“ah” frequency rank
18722
confusion score

Side-by-Side Comparison

Feature ache ah
Definition To suffer pain; to be the source of, or be in, pain, especially continued dull pain; to be distressed. An expression of relief, relaxation, comfort, confusion, understanding, wonder, awe, etc. according to uttered inflection.

Where the eye mixes ache and ah

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
ache
2 ch
ah

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ache is /ˈeɪk/ while ah is /ɑː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (verb vs intj), which is usually the fastest check. Our composite confusion score for this pair is 18722, derived from the frequency rank of both members and their visual similarity.

ache is recorded at frequency rank #16,397, classified as averb, pronounced /ˈeɪk/. ah is at rank #2,325, tagged as anintj, pronounced /ɑː/.

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 18722, this pair ranks #442,992 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ache vs ah

Shared letters: ah. Private to "ache": ce. Private to "ah": -.

"ache" · 4 letters · shape VCCV  ·  "ah" · 2 letters · shape VC

Known mistypes of this pair

  • acheachhe · ahce · cahe

Frequently Asked Questions

Can "ache" and "ah" be used interchangeably?
No - they are not even the same part of speech. "ache" is a verb and "ah" an intj, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ache" or "ah"?
"ah" is the more common of the two: it sits at frequency rank #2,325 in our English list, against #16,397 for "ache". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list