Which to use
“Planck” is a name and “plane” is an adjective - they look or sound alike but fill different roles in a sentence.
- #15,968
- “Planck” frequency rank
- #9,072
- “plane” frequency rank
- 25040
- confusion score
Side-by-Side Comparison
| Feature | Planck | plane |
|---|---|---|
| Definition | deutscher Nachname, Familienname | Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs plan |
Letter map: Planck vs plane
Shared letters muted; letters that set Planck and plane apart highlighted. Shared run: 4.
Role in the sentence - Planck and plane
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Planck is aname and planeanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 25040, derived from the frequency rank of both members and their visual similarity.
Planck is recorded at frequency rank #15,968, classified as aname, pronounced […]. plane is at rank #9,072, tagged as anadj, pronounced [ˈplaːnə].
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 25040, this pair ranks #1,839,022 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Planck vs plane
Shared letters: alnp. Private to "Planck": ck. Private to "plane": e.
"Planck" · 6 letters · shape CCVCCC · "plane" · 5 letters · shape CCVCV
Known mistypes of this pair
Frequently Asked Questions
Can "Planck" and "plane" be used interchangeably?
Which is more common, "Planck" or "plane"?
Useful next steps
You've compared "Planck" and "plane". Here's where to go from here.
- Full dictionary entry for "Planck" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "plane" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,839,022 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Planck" and "plane" also get mixed up with nearby pairs, the highest-scored neighbour is "Planck vs puzzles". 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 #1,839,022 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.