achingvsaddingWhich spelling fits?

Which to use

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

#19,750
“aching” frequency rank
#2,140
“adding” frequency rank
21890
confusion score

Side-by-Side Comparison

Feature aching adding
Definition present participle and gerund of ache present participle and gerund of add

Where the eye mixes aching and adding

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
aching
6 ch
adding

Why the eye confuses aching with adding

A purely visual mix-up. aching (/ˈeɪ.kɪŋ/) and adding (/ˈæ.dɪŋ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 21890, derived from the frequency rank of both members and their visual similarity.

aching is recorded at frequency rank #19,750, classified as averb, pronounced /ˈeɪ.kɪŋ/. adding is at rank #2,140, tagged as averb, pronounced /ˈæ.dɪŋ/.

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 21890, this pair ranks #420,622 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of aching vs adding

Shared letters: agin. Private to "aching": ch. Private to "adding": d.

"aching" · 6 letters · shape VCCVCC  ·  "adding" · 6 letters · shape VCCVCC

Known mistypes of this pair

  • achingacching · achhing · achign · achingg · achinng · achnig · acihng · ahcing
  • addingaddign · addingg · addinng · addnig · adidng · ading · dading

Frequently Asked Questions

Can "aching" and "adding" be used interchangeably?
No. They are said differently (/ˈeɪ.kɪŋ/ versus /ˈæ.dɪŋ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "aching" vs "adding" - which ranks higher?
"adding" is the more common of the two: it sits at frequency rank #2,140 in our English list, against #19,750 for "aching". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "aching" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "adding" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #420,622 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "aching" and "adding" also get mixed up with nearby pairs, the highest-scored neighbour is "aching vs awning". 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 #420,622 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