Which to use
“PLA” is a name and “plank” is a noun - they look or sound alike but fill different roles in a sentence.
- #20,735
- “PLA” frequency rank
- #15,884
- “plank” frequency rank
- 36619
- confusion score
Side-by-Side Comparison
| Feature | PLA | plank |
|---|---|---|
| Definition | Initialism of Port of London Authority. | A long, broad and thick piece of timber, as opposed to a board which is less thick. |
Letter map: PLA vs plank
Shared letters muted; letters that set PLA and plank apart highlighted. Shared run: 3.
Role in the sentence - PLA and plank
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: PLA is aname and plankanoun. On the page they differ by 2 extra letter(s) - “PLA” sits inside “plank”. Our composite confusion score for this pair is 36619, derived from the frequency rank of both members and their visual similarity.
PLA is recorded at frequency rank #20,735, classified as aname. plank is at rank #15,884, tagged as anoun, pronounced /ˈplæŋk/.
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 36619, this pair ranks #301,647 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of PLA vs plank
Shared letters: alp. Private to "PLA": -. Private to "plank": kn.
"PLA" · 3 letters · shape CCV · "plank" · 5 letters · shape CCVCC
Known mistypes of this pair
- plank ← lpank · palnk · plakn · plankk · plannk · pllank · plnak · pplank
Frequently Asked Questions
Is swapping "PLA" for "plank" ever safe?
Which is more common, "PLA" or "plank"?
After this comparison
Done with this confusable. These links stay specific to "PLA" and "plank".
- Full dictionary entry for "PLA" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "plank" - compare definitions side by side with the headword page. Word entry
- This pair ranks #301,647 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "PLA" and "plank" also get mixed up with nearby pairs, the highest-scored neighbour is "PLA vs PPA". 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 #301,647 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.