robustness
"robustness" is a 10-letter English headword indexed on PlainSpell.
The verdict
“robustness” has 14 generated spelling variants in the English index at frequency #35,916. The variants make it a useful spelling check.
- #35,916
- frequency rank, English
- 3,094
- “R” headwords
- 14
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The quality of being robust.
Corpus desk
Index EN-robustness · robustness · English
robustness · rank #35,916 · 14 variants · 0 confusables
- FREQ-MID #35,916
- LEN-MEGA 10 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-HIGH 14 variants
- BOOK-MID 3,094
- PHOTO-FINISH Rogan
Nearest frequency peer: Rogan (+1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Frequency neighbourhood for “robustness”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- retrofit
retrofit
64,089 corpus weight
- Reus
Reus
64,088 corpus weight
- robustness
robustness
64,085 corpus weight
- Rogan
Rogan
64,084 corpus weight
- roleplaying
roleplaying
64,083 corpus weight
- Roseanne
Roseanne
64,081 corpus weight
What this shows Bars show where “robustness” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | robustness |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Frequency rank | #35,916 |
| Misspellings tracked | 14 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “robustness” sits in English frequency
A misspelling magnet
The generator records 14 spelling variants around robustness, anoun. Corpus frequency is #35,916 among 3,094 “R” headwords. Dominant gloss: "The quality of being robust.".
Our generated misspelling index lists 14 likely wrong-spelling variants for robustness, with forms such as "orbustness", "rboustness", and "robbustness". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From robust + -ness. The correct English form is robustness, spelled R-O-B-U-S-T-N-E-S-S.
Definition
- 1The quality of being robust.
Recorded use
Wiktionary examplesThese source excerpts show how robustness appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Robustness was considered to be an essential feature because of the comparatively high starting effort and the generally rough work for which the locomotives are to be used.
The Inspecting Officer draws attention to the remarkable way in which the train held together after the final derailment; this was due in no small measure to the robustness of the buckeye couplings fitted to the coaches.
Etymology
From robust + -ness.
This word in other languages
Common misspellings
Also misspelled as:
- orbustness
- rboustness
- robbustness
- robsutness
- robusntess
- robusstness
- robustenss
- robustnes
- robustnness
- robustnses
- robusttness
- robutsness
- roubstness
- rrobustness
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of robustness - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
How do you spell "robustness"?
What does "robustness" mean?
What are common misspellings of "robustness"?
What is the origin of the word "robustness"?
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "robustness", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (14 here; floor ≥5).
What to do next
You've looked up "robustness". Here's where to go from here.
- 14 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
- Usage frequency rank #35,916 among English headwords in this corpus. Corpus statistics
- Browse more English words in the "R" letter cohort. R–Z browse
- PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.