assembledvsassemblyConfusable pair

Quick tell: assembled is a verb, assembly is a noun, so they fill different roles in a sentence.

Which to use

“assembled” is a verb and “assembly” is a noun - they look or sound alike but fill different roles in a sentence.

#7,525
“assembled” frequency rank
#2,425
“assembly” frequency rank
9950
confusion score

Side-by-Side Comparison

Feature assembled assembly
Definition simple past and past participle of assemble A set of pieces that work together in unison as a mechanism or device.

Where the eye mixes assembled and assembly

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

9 ch
assembled
8 ch
assembly

Look-alike desk: assembled vs assembly

These two trip readers on the page rather than in the ear: assembled is /əˈsɛmbl̩d/ while assembly is /əˈsɛmb.lɪ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 9950, derived from the frequency rank of both members and their visual similarity.

assembled is recorded at frequency rank #7,525, classified as averb, pronounced /əˈsɛmbl̩d/. assembly is at rank #2,425, tagged as anoun, pronounced /əˈsɛmb.lɪ/.

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 9950, this pair ranks #494,761 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of assembled vs assembly

Shared letters: abelms. Private to "assembled": d. Private to "assembly": y.

"assembled" · 9 letters · shape VCCVCCCVC  ·  "assembly" · 8 letters · shape VCCVCCCV

Known mistypes of this pair

  • assembledasembled · asesmbled · assebmled · assembbled · assembeld · assemblde · assembledd · assemblled
  • assemblyasembly · asesmbly · assebmly · assembbly · assemblly · assemblyy · assembyl · assemlby

Frequently Asked Questions

Do "assembled" and "assembly" mean the same thing in a sentence?
No - they are not even the same part of speech. "assembled" is a verb and "assembly" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "assembled" vs "assembly" - which ranks higher?
"assembly" is the more common of the two: it sits at frequency rank #2,425 in our English list, against #7,525 for "assembled". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "assembled" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "assembly" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #494,761 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "assembled" and "assembly" also get mixed up with nearby pairs, the highest-scored neighbour is "assembled vs assembler". 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 #494,761 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