back door
"back-door" is a 8-letter English headword indexed on PlainSpell.
The verdict
“back door” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A subsidiary entrance to a building or house at its rear, normally away from the street.
Corpus desk
Index EN-back-door · back door · English
back door · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "B" 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 | back door |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “back door” in English
Rare enough to double-check
back door is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 6 senses are on record.
Zero misspellings are on record for back door in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.
This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is back door, spelled B-A-C-K- -D-O-O-R.
Definition
- 1A subsidiary entrance to a building or house at its rear, normally away from the street.
- 2A means of access, often secret and unprotected, to something.
- 3A secret means of access to a program or system.
- 4A rear side door of a car, or at the back of a van.
- 5The anus; (by extension) anal sex.
- 6The rear side of the hole, furthest from the golfer.
Recorded use
Wiktionary examplesThese source excerpts show how back door appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
"Charles II, who was crowned here a little while before, occupied an old house (which is still standing) in New Street [Worcester], from which he escaped by the back door, as the enemy rushed in at the front."
Scoring three goals at home should guarantee you three points, but when you go on the attack a little bit more, you leave the back door open. That's not always a good idea with this team.
Antonyms
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.