Which to use
“assembler” and “assembly” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #42,006
- “assembler” frequency rank
- #2,425
- “assembly” frequency rank
- 44431
- confusion score
Side-by-Side Comparison
| Feature | assembler | assembly |
|---|---|---|
| Definition | A program that reads source code written in assembly language and produces executable machine code, possibly together with information needed by linkers, debuggers and other tools. | A set of pieces that work together in unison as a mechanism or device. |
Where the eye mixes assembler and assembly
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Look-alike desk: assembler vs assembly
A purely visual mix-up. assembler (/əˈsɛmb(ə)lɚ/) and assembly (/əˈsɛmb.lɪ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 44431, derived from the frequency rank of both members and their visual similarity.
assembler is recorded at frequency rank #42,006, classified as anoun, pronounced /əˈsɛmb(ə)lɚ/. 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 44431, this pair ranks #230,638 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of assembler vs assembly
Shared letters: abelms. Private to "assembler": r. Private to "assembly": y.
"assembler" · 9 letters · shape VCCVCCCVC · "assembly" · 8 letters · shape VCCVCCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "assembler" for "assembly" ever safe?
Which is more common, "assembler" or "assembly"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "assembler" 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 #230,638 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "assembler" and "assembly" also get mixed up with nearby pairs, the highest-scored neighbour is "assemble 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 #230,638 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.