patrolvspetrolTell them apart

Which to use

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

#5,720
“patrol” frequency rank
#10,905
“petrol” frequency rank
16625
confusion score

Side-by-Side Comparison

Feature patrol petrol
Definition A going of the rounds along the chain of sentinels and between the posts, by a guard, usually consisting of three or four men, to insure greater security from attacks on the outposts. A fluid consisting of a mixture of refined petroleum hydrocarbons, primarily consisting of octane, commonly used as a motor fuel.

Where the eye mixes patrol and petrol

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. patrol and petrol follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
patrol
6 ch
petrol

Why the eye confuses patrol with petrol

A purely visual mix-up. patrol (/pəˈtɹəʊl/) and petrol (/ˈpɛt.ɹəl/) 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 a single letter - a in “patrol” becomes e in “petrol”. Our composite confusion score for this pair is 16625, derived from the frequency rank of both members and their visual similarity.

patrol is recorded at frequency rank #5,720, classified as anoun, pronounced /pəˈtɹəʊl/. petrol is at rank #10,905, tagged as anoun, pronounced /ˈpɛt.ɹəl/.

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 16625, this pair ranks #456,588 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of patrol vs petrol

Shared letters: loprt. Private to "patrol": a. Private to "petrol": e.

"patrol" · 6 letters · shape CVCCVC  ·  "petrol" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • patrol ← aptrol · partol · patorl · patrlo · patroll · patrrol · pattrol · ppatrol
  • petrol ← eptrol · pertol · petorl · petrlo · petroll · petrrol · pettrol · ppetrol

Frequently Asked Questions

Can "patrol" and "petrol" be used interchangeably?
No. They are said differently (/pəˈtɹəʊl/ versus /ˈpɛt.ɹəl/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "patrol" or "petrol"?
"patrol" is the more common of the two: it sits at frequency rank #5,720 in our English list, against #10,905 for "petrol". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "patrol" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "petrol" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #456,588 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "patrol" and "petrol" also get mixed up with nearby pairs, the highest-scored neighbour is "Perot vs petrol". 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 #456,588 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