diesevsdieselWhich spelling fits?

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

Which to use

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

#26,003
“diese” frequency rank
#14,577
“diesel” frequency rank
40580
confusion score

Side-by-Side Comparison

Feature diese diesel
Definition Primera persona del singular (yo) del pretérito imperfecto de subjuntivo de dar o de darse. Gasóleo.

Where the eye mixes diese and diesel

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. diese runs 5 letters (CVVCV) against diesel's 6 (CVVCVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
diese
6 ch
diesel

Visual trap between diese and diesel

These two trip readers on the page rather than in the ear: diese is [ˈd̪jese] while diesel is [ˈdiˀsəl]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “diese” sits inside “diesel”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 40580, derived from the frequency rank of both members and their visual similarity.

diese is recorded at frequency rank #26,003, classified as averb, pronounced [ˈd̪jese]. diesel is at rank #14,577, tagged as anoun, pronounced [ˈdiˀsəl].

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 40580, this pair ranks #158,321 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of diese vs diesel

Shared letters: deis. Private to "diese": -. Private to "diesel": l.

"diese" · 5 letters · shape CVVCV  ·  "diesel" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • diese ← ddiese · deise · diece · diees · diesse · disee · idese
  • diesel ← ddiesel · deisel · diecel · dieesl · diesell · diesle · diessel · diseel

Frequently Asked Questions

Can "diese" and "diesel" be used interchangeably?
No - they are not even the same part of speech. "diese" is a verb and "diesel" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "diese" or "diesel"?
"diesel" is the more common of the two: it sits at frequency rank #14,577 in our Spanish list, against #26,003 for "diese". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "diese" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "diesel" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #158,321 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "diese" and "diesel" also get mixed up with nearby pairs, the highest-scored neighbour is "diese vs disease". 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 #158,321 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list