backpack
/ˈbæk.pæk/
"backpack" is a 8-letter English headword indexed on PlainSpell.
The verdict
“backpack” is a regularly-used English word, ranked #9,851 in English word frequency and used as a noun.
- #9,851
- frequency rank, English
- 8
- letters
- 13
- tracked misspellings
- 3
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carry...
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | backpack |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈbæk.pæk/ |
| Letters | 8 |
| Frequency rank | #9,851 |
| Misspellings tracked | 13 |
| Confusable pairs | 3 |
| Source | Wiktionary (kaikki.org) |
Where “backpack” sits in English frequency
Spelling & Dictionary Insight
The English entry for backpack is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈbæk.pæk/. Corpus data places it at rank #9,851 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 13 likely wrong-spelling variants for backpack, with forms such as "abckpack", "bacckpack", and "backapck". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 3 confusable-pair relationships, "blackjack", "backtrack", "backpacker", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From back + pack. The correct English form is backpack, spelled B-A-C-K-P-A-C-K.
Definition
- 1A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carrying books.
- 2A similarly placed item containing a parachute or other life-support equipment.
Etymology
From back + pack.
This word in other languages
Common misspellings
Also misspelled as: abckpack,bacckpack,backapck,backkpack,backpacck,backpackk,backpakc,backpcak,backppack,bacpkack,bakcpack,bbackpack,bcakpack
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of backpack - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "backpack"?
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Using “backpack”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-A-C-K-P-A-C-K - every other letter order is a misspelling in standard orthography.
- Say it as /ˈbæk.pæk/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “blackjack” - see the side-by-side comparison. backpack vs blackjack
- 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.