PlanvsplanesConfusable pair

Quick tell: Plan is a noun, planes is an adjective, so they fill different roles in a sentence.

Which to use

“Plan” is a noun and “planes” is an adjective - they look or sound alike but fill different roles in a sentence.

#1,167
“Plan” frequency rank
#45,514
“planes” frequency rank
46681
confusion score

Side-by-Side Comparison

Feature Plan planes
Definition ein durchdachtes Vorhaben, eine Idee oder Vorstellung einer Vorgehensweise Nominativ Singular Neutrum der starken Deklination des Positivs des Adjektivs plan

Where the eye mixes Plan and planes

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

4 ch
Plan
6 ch
planes

Visual trap between Plan and planes

These two trip readers on the page rather than in the ear: Plan is [plaːn] while planes is [ˈplaːnəs]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “Plan” sits inside “planes”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 46681, derived from the frequency rank of both members and their visual similarity.

Plan is recorded at frequency rank #1,167, classified as anoun, pronounced [plaːn]. planes is at rank #45,514, tagged as anadj, pronounced [ˈplaːnəs].

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 46681, this pair ranks #1,310,703 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Plan vs planes

Shared letters: alnp. Private to "Plan": -. Private to "planes": es.

"Plan" · 4 letters · shape CCVC  ·  "planes" · 6 letters · shape CCVCVC

Known mistypes of this pair

  • Planlpan · paln · plann · pllan · plna · pplan
  • planeslpanes · palnes · plaens · planess · plannes · planse · pllanes · plnaes

Frequently Asked Questions

Can "Plan" and "planes" be used interchangeably?
No - they are not even the same part of speech. "Plan" is a noun and "planes" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Plan" or "planes"?
"Plan" is the more common of the two: it sits at frequency rank #1,167 in our German list, against #45,514 for "planes". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "Plan" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "planes" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,310,703 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Plan" and "planes" also get mixed up with nearby pairs, the highest-scored neighbour is "planes vs plants". 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 #1,310,703 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list