Which to use
“union” and “units” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #890
- “union” frequency rank
- #1,778
- “units” frequency rank
- 2668
- confusion score
Side-by-Side Comparison
| Feature | union | units |
|---|---|---|
| Definition | The act of uniting or joining two or more things into one. | plural of unit |
Where the eye mixes union and units
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between union and units
A purely visual mix-up. union (/ˈjuː.njən/) and units (/ˈjuː.nɪts/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 2668, derived from the frequency rank of both members and their visual similarity.
union is recorded at frequency rank #890, classified as anoun, pronounced /ˈjuː.njən/. units is at rank #1,778, tagged as anoun, pronounced /ˈjuː.nɪts/.
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 2668, this pair ranks #524,362 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of union vs units
Shared letters: inu. Private to "union": o. Private to "units": st.
"union" · 5 letters · shape VCVVC · "units" · 5 letters · shape VCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "union" and "units" be used interchangeably?
Which is more common, "union" or "units"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "union" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "units" - compare definitions side by side with the headword page. Word entry
- This pair ranks #524,362 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "union" and "units" also get mixed up with nearby pairs, the highest-scored neighbour is "union vs Unwin". 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 #524,362 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.