developvsdevelopedTell them apart

Quick tell: develop is a verb, developed is an adjective, so they fill different roles in a sentence.

Which to use

“develop” is a verb and “developed” is an adjective - they look or sound alike but fill different roles in a sentence.

#1,820
“develop” frequency rank
#1,183
“developed” frequency rank
3003
confusion score

Side-by-Side Comparison

Feature develop developed
Definition To discover, find out; to uncover. wealthy and industrialized; not third-world.

Where the eye mixes develop and developed

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

7 ch
develop
9 ch
developed

Visual trap between develop and developed

These two trip readers on the page rather than in the ear: develop is /dɪˈvɛl.əp/ while developed is /dɪˈvɛləpt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “develop” sits inside “developed”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 3003, derived from the frequency rank of both members and their visual similarity.

develop is recorded at frequency rank #1,820, classified as averb, pronounced /dɪˈvɛl.əp/. developed is at rank #1,183, tagged as anadj, pronounced /dɪˈvɛləpt/.

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 3003, this pair ranks #523,405 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of develop vs developed

Shared letters: delopv. Private to "develop": -. Private to "developed": -.

"develop" · 7 letters · shape CVCVCVC  ·  "developed" · 9 letters · shape CVCVCVCVC

Known mistypes of this pair

  • developddevelop · deevlop · devellop · developp · develpo · deveolp · devleop · devvelop
  • developedddeveloped · deevloped · develloped · develoepd · developde · developedd · developped · develpoed

Frequently Asked Questions

Do "develop" and "developed" mean the same thing in a sentence?
No - they are not even the same part of speech. "develop" is a verb and "developed" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "develop" or "developed"?
"developed" is the more common of the two: it sits at frequency rank #1,183 in our English list, against #1,820 for "develop". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "develop" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "developed" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #523,405 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "develop" and "developed" also get mixed up with nearby pairs, the highest-scored neighbour is "develop vs developer". 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 #523,405 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