rucksack
/ˈɹʌkˌsæk/
"rucksack" is a 8-letter English headword indexed on PlainSpell.
The verdict
“rucksack” is a moderately-common English word, ranked #45,060 in English word frequency and used as a noun.
- #45,060
- frequency rank, English
- 8
- letters
- 13
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A bag carried on the back or shoulder, supported by straps.
| Property | Value |
|---|---|
| Headword | rucksack |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɹʌkˌsæk/ |
| Letters | 8 |
| Frequency rank | #45,060 |
| Misspellings tracked | 13 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “rucksack” sits in English frequency
Spelling & Dictionary Insight
The English entry for rucksack is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɹʌkˌsæk/. Corpus data places it at rank #45,060 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A bag carried on the back or shoulder, supported by straps.".
Our generated misspelling index lists 13 likely wrong-spelling variants for rucksack, with forms such as "rcuksack", "rrucksack", and "ruccksack". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: Borrowed from German Rucksack. The correct English form is rucksack, spelled R-U-C-K-S-A-C-K.
Definition
- 1A bag carried on the back or shoulder, supported by straps.
Etymology
Borrowed from German Rucksack.
This word in other languages
Common misspellings
Also misspelled as: rcuksack,rrucksack,ruccksack,ruckasck,ruckksack,rucksacck,rucksackk,rucksakc,ruckscak,ruckssack,rucskack,rukcsack,urcksack
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of rucksack - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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.
Frequently Asked Questions
How do you spell "rucksack"?
What does "rucksack" mean?
What are common misspellings of "rucksack"?
How do you pronounce "rucksack"?
What is the origin of the word "rucksack"?
Is PlainSpell free to use?
Using “rucksack”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-U-C-K-S-A-C-K - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɹʌkˌsæk/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
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.