shimvsshooWhich spelling fits?

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

Which to use

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

#40,020
“shim” frequency rank
#35,078
“shoo” frequency rank
75098
confusion score

Side-by-Side Comparison

Feature shim shoo
Definition A wedge. To induce someone or something to leave.

Where the eye mixes shim and shoo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. shim (CCVC) and shoo (CCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
shim
4 ch
shoo

Why the eye confuses shim with shoo

These two trip readers on the page rather than in the ear: shim is /ʃɪm/ while shoo is /ʃuː/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 75098, 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/. shoo is at rank #35,078, tagged as averb, pronounced /ʃuː/.

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 75098, this pair ranks #34,204 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of shim vs shoo

Shared letters: hs. Private to "shim": im. Private to "shoo": o.

"shim" · 4 letters · shape CCVC  ·  "shoo" · 4 letters · shape CCVV

Known mistypes of this pair

  • shim ← hsim · shhim · shimm · shmi · sihm · sshim
  • shoo ← hsoo · shhoo · sshoo

Frequently Asked Questions

Is swapping "shim" for "shoo" ever safe?
No - they are not even the same part of speech. "shim" is a noun and "shoo" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "shim" or "shoo" show up more?
"shoo" is the more common of the two: it sits at frequency rank #35,078 in our English list, against #40,020 for "shim". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "shim" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "shoo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #34,204 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "shim" and "shoo" 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 #34,204 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