blocksvsbollocksTell them apart

Which to use

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

#3,410
“blocks” frequency rank
#25,683
“bollocks” frequency rank
29093
confusion score

Side-by-Side Comparison

Feature blocks bollocks
Definition plural of block The testicles.

Where the eye mixes blocks and bollocks

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

6 ch
blocks
8 ch
bollocks

Why the eye confuses blocks with bollocks

A purely visual mix-up. blocks (/blɑks/) and bollocks (/ˈbɒ.ləks/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 29093, derived from the frequency rank of both members and their visual similarity.

blocks is recorded at frequency rank #3,410, classified as anoun, pronounced /blɑks/. bollocks is at rank #25,683, tagged as anoun, pronounced /ˈbɒ.ləks/.

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 29093, this pair ranks #365,873 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of blocks vs bollocks

Shared letters: bcklos. Private to "blocks": -. Private to "bollocks": -.

"blocks" · 6 letters · shape CCVCCC  ·  "bollocks" · 8 letters · shape CVCCVCCC

Known mistypes of this pair

  • blocksbblocks · blcoks · bllocks · bloccks · blockks · blockss · blocsk · blokcs
  • bollocksbbollocks · blolocks · bollcoks · bolloccks · bollockks · bollockss · bollocsk · bollokcs

Frequently Asked Questions

Is swapping "blocks" for "bollocks" ever safe?
No. They are said differently (/blɑks/ versus /ˈbɒ.ləks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "blocks" vs "bollocks" - which ranks higher?
"blocks" is the more common of the two: it sits at frequency rank #3,410 in our English list, against #25,683 for "bollocks". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "blocks" and "bollocks" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "blocks" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bollocks" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #365,873 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "blocks" and "bollocks" also get mixed up with nearby pairs, the highest-scored neighbour is "blocks vs blocs". 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 #365,873 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