compoundvscompoundedWhat's the difference?

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

Which to use

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

#5,311
“compound” frequency rank
#18,274
“compounded” frequency rank
23585
confusion score

Side-by-Side Comparison

Feature compound compounded
Definition An enclosure within which workers, prisoners, or soldiers are confined. Compound; composite; resulting from the interaction and combination of multiple parts.

Letter map: compound vs compounded

Shared letters muted; letters that set compound and compounded apart highlighted. Shared run: 8.

8 ch
compound
10 ch
compounded

Grammar separator: compound vs compounded

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: compound is anoun and compoundedanadjective. On the page they differ by 2 extra letter(s) - “compound” sits inside “compounded”. Our composite confusion score for this pair is 23585, derived from the frequency rank of both members and their visual similarity.

compound is recorded at frequency rank #5,311, classified as anoun, pronounced /ˈkɒmˈpaʊnd/. compounded is at rank #18,274, tagged as anadj.

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 23585, this pair ranks #408,227 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of compound vs compounded

Shared letters: cdmnopu. Private to "compound": -. Private to "compounded": e.

"compound" · 8 letters · shape CVCCVVCC  ·  "compounded" · 10 letters · shape CVCCVVCCVC

Known mistypes of this pair

  • compoundccompound · cmopound · commpound · comopund · componud · compoudn · compoundd · compounnd
  • compoundedccompounded · cmopounded · commpounded · comopunded · componuded · compoudned · compoundde · compoundded

Frequently Asked Questions

Do "compound" and "compounded" mean the same thing in a sentence?
No - they are not even the same part of speech. "compound" is a noun and "compounded" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "compound" or "compounded"?
"compound" is the more common of the two: it sits at frequency rank #5,311 in our English list, against #18,274 for "compounded". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "compound" vs "compounded" is on the table, pick a follow-up below.

  • Full dictionary entry for "compound" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "compounded" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #408,227 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "compound" and "compounded" also get mixed up with nearby pairs, the highest-scored neighbour is "compounded vs confounded". 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 #408,227 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