bis vs bus, What's the Difference?

Which to use

“bis” and “bus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,497
“bis” frequency rank: #1,554
“bus” frequency rank: 20051
confusion score

Side-by-Side Comparison

Feature	bis	bus
Definition	plural of bi	A motor vehicle for transporting large numbers of people along roads.

Where the eye mixes bis and bus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch

bis

3 ch

bus

Look-alike desk: bis vs bus

A purely visual mix-up. bis (/baɪz/) and bus (/bʌs/) 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 a single letter - i in “bis” becomes u in “bus”. Our composite confusion score for this pair is 20051, derived from the frequency rank of both members and their visual similarity.

bis is recorded at frequency rank #18,497, classified as anoun, pronounced /baɪz/. bus is at rank #1,554, tagged as anoun, pronounced /bʌs/.

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 20051, this pair ranks #433,816 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bis vs bus

Shared letters: bs. Private to "bis": i. Private to "bus": u.

"bis" · 3 letters · shape CVC · "bus" · 3 letters · shape CVC

Frequently Asked Questions

Can "bis" and "bus" be used interchangeably?

No. They are said differently (/baɪz/ versus /bʌs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "bis" or "bus"?

"bus" is the more common of the two: it sits at frequency rank #1,554 in our English list, against #18,497 for "bis". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

Full dictionary entry for "bis" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "bus" - compare definitions side by side with the headword page. Word entry
This pair ranks #433,816 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"bis" and "bus" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs bis". Nearby pair

Confusion rank #433,816 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.