shimvsshirkWhich spelling fits?

Quick tell: shim is a noun, shirk is a verb, so they fill different roles in a sentence.

Which to use

“shim” is a noun and “shirk” is a verb - they look or sound alike but fill different roles in a sentence.

#40,020
“shim” frequency rank
#43,913
“shirk” frequency rank
83933
confusion score

Side-by-Side Comparison

Feature shim shirk
Definition A wedge. To avoid, especially a duty, responsibility, etc.; to stay away from.

Where the eye mixes shim and shirk

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. shim runs 4 letters (CCVC) against shirk's 5 (CCVCC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
shim
5 ch
shirk

Why the eye confuses shim with shirk

These two trip readers on the page rather than in the ear: shim is /ʃɪm/ while shirk is /ʃɜːk/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 83933, derived from the frequency rank of both members and their visual similarity.

shim is recorded at frequency rank #40,020, classified as anoun, pronounced /ʃɪm/. shirk is at rank #43,913, tagged as averb, pronounced /ʃɜːk/.

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 83933, this pair ranks #12,909 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of shim vs shirk

Shared letters: his. Private to "shim": m. Private to "shirk": kr.

"shim" · 4 letters · shape CCVC  ·  "shirk" · 5 letters · shape CCVCC

Known mistypes of this pair

  • shim ← hsim · shhim · shimm · shmi · sihm · sshim
  • shirk ← hsirk · shhirk · shikr · shirkk · shirrk · shrik · sihrk · sshirk

Frequently Asked Questions

Do "shim" and "shirk" mean the same thing in a sentence?
No - they are not even the same part of speech. "shim" is a noun and "shirk" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "shim" or "shirk" show up more?
"shim" is the more common of the two: it sits at frequency rank #40,020 in our English list, against #43,913 for "shirk". 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 "shim" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "shirk" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #12,909 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "shim" and "shirk" also get mixed up with nearby pairs, the highest-scored neighbour is "shim vs Sif". 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 #12,909 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