Which to use
“robber” is a noun and “Robby” is a name - they look or sound alike but fill different roles in a sentence.
- #17,462
- “robber” frequency rank
- #28,699
- “Robby” frequency rank
- 46161
- confusion score
Side-by-Side Comparison
| Feature | robber | Robby |
|---|---|---|
| Definition | A person who robs. | A diminutive of the male given name Robert. |
Letter map: robber vs Robby
Shared letters muted; letters that set robber and Robby apart highlighted. Shared run: 4.
Part-of-speech tell for robber / Robby
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: robber is anoun and Robbyaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 46161, derived from the frequency rank of both members and their visual similarity.
robber is recorded at frequency rank #17,462, classified as anoun, pronounced /ˈɹɒb.ə(ɹ)/. Robby is at rank #28,699, tagged as aname.
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 46161, this pair ranks #214,360 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of robber vs Robby
Shared letters: bor. Private to "robber": e. Private to "Robby": y.
"robber" · 6 letters · shape CVCCVC · "Robby" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "robber" and "Robby" mean the same thing in a sentence?
In ordinary English text, does "robber" or "Robby" show up more?
After this comparison
Pair "robber" vs "Robby" is on the table, pick a follow-up below.
- Full dictionary entry for "robber" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Robby" - compare definitions side by side with the headword page. Word entry
- This pair ranks #214,360 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "robber" and "Robby" also get mixed up with nearby pairs, the highest-scored neighbour is "Robby vs roomy". 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 #214,360 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.