square kilometre
"square-kilometre" is a 15-letter English headword indexed on PlainSpell.
The verdict
“square kilometre” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 16
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Standard unit of area, symbol km², equal to the area of a square whose sides are one kilometre long; 10⁶ square metres.
Corpus desk
Index EN-square-kilometre · square kilometre · English
square kilometre · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 16 letters
- VOW-7 7 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "S" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | square kilometre |
| Language | English |
| Part of speech | Noun |
| Letters | 16 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “square kilometre” in English
Rare enough to double-check
square kilometre is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Standard unit of area, symbol km², equal to the area of a square whose sides are one kilometre long; 10⁶ square metres.".
The misspelling generator found no plausible variants for square kilometre, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.
This entry carries no recorded etymology, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is square kilometre, spelled S-Q-U-A-R-E- -K-I-L-O-M-E-T-R-E.
Definition
- 1Standard unit of area, symbol km², equal to the area of a square whose sides are one kilometre long; 10⁶ square metres.
Recorded use
Wiktionary exampleThese source excerpts show how square kilometre appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Located at the southern end of the exercise area, Wuqiu Dao consists of two islets - Daqiucun [Dachiu-tsun^([sic – meaning Tachiu-tsun])] and Xiaoqiucun [Hsiaochiu-tsun] with each covering approximately one square km.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.