Which to use
“billion” and “billions” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,811
- “billion” frequency rank
- #7,420
- “billions” frequency rank
- 9231
- confusion score
Side-by-Side Comparison
| Feature | billion | billions |
|---|---|---|
| Definition | Either of two large amounts: | plural of billion |
Where the eye mixes billion and billions
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.
Why the eye confuses billion with billions
A purely visual mix-up. billion (/ˈbɪljən/) and billions (/ˈbɪljənz/) 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 extra letter(s) - “billion” sits inside “billions”. Our composite confusion score for this pair is 9231, derived from the frequency rank of both members and their visual similarity.
billion is recorded at frequency rank #1,811, classified as anum, pronounced /ˈbɪljən/. billions is at rank #7,420, tagged as anum, pronounced /ˈbɪljənz/.
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 9231, this pair ranks #498,439 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of billion vs billions
Shared letters: bilno. Private to "billion": -. Private to "billions": s.
"billion" · 7 letters · shape CVCCVVC · "billions" · 8 letters · shape CVCCVVCC
Known mistypes of this pair
Frequently Asked Questions
Do "billion" and "billions" mean the same thing in a sentence?
Frequency check: "billion" vs "billions" - which ranks higher?
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 "billion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "billions" - compare definitions side by side with the headword page. Word entry
- This pair ranks #498,439 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "billion" and "billions" also get mixed up with nearby pairs, the highest-scored neighbour is "ballon vs billion". 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 #498,439 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.