backdoor

noun

By · According to Wiktionary data (CC BY-SA) ·

"backdoor" is a 8-letter English headword indexed on PlainSpell.

The verdict

“backdoor” has 12 generated spelling variants in the English index at frequency #27,731. The variants make it a useful spelling check.

#27,731
frequency rank, English
4,121
“B” headwords
12
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative form of back door.

Corpus desk

Index EN-backdoor · backdoor · English

backdoor · rank #27,731 · 12 variants · 2 confusables

  • FREQ-MID #27,731
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 12 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH babysit

Nearest frequency peer: babysit (-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.

Rank peers near misspelling magnet “backdoor”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “backdoor” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

backdoor vs backdrop
75% similar
backdoor vs backroom
75% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for backdoor
PropertyValue
Headwordbackdoor
LanguageEnglish
Part of speechNoun
Letters8
Frequency rank#27,731
Misspellings tracked12
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “backdoor”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).backdoorlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “babysit” (#27,730), “bagels” (#27,732), “baker's” (#27,733). Among 4,121 “B” headwords, “backdoor” is #27,731. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around backdoor, anoun. Corpus frequency is #27,731 among 4,121 “B” headwords. Dominant gloss: "Alternative form of back door.".

Our generated misspelling index lists 12 likely wrong-spelling variants for backdoor, with forms such as "abckdoor", "bacckdoor", and "bacdkoor". 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 2 confusable-pair relationships, "backdrop", "backroom", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From back + door. The correct English form is backdoor, spelled B-A-C-K-D-O-O-R.

Definition

  1. 1
    Alternative form of back door.

Recorded use

Wiktionary example

These source excerpts show how backdoor appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. South Western Railway is introducing "backdoor price hikes" of "up to 28%" from September 5, claims pressure group SWR Watch, which has asked the operator: "When were you going to tell passengers?"

Etymology

From back + door.

Common misspellings

Also misspelled as:

  • abckdoor
  • bacckdoor
  • bacdkoor
  • backddoor
  • backdoorr
  • backdor
  • backdoro
  • backkdoor
  • backodor
  • bakcdoor
  • bbackdoor
  • bcakdoor

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of backdoor - 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.

abckdoor2bacckdoor1bacdkoor2backddoor1backdoorr1backdor1backdoro2backkdoor1
Edit distance from "backdoor"

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 "backdoor"?
"backdoor" is spelled B-A-C-K-D-O-O-R.
What does "backdoor" mean?
As a noun, "backdoor" means: Alternative form of back door.
What words are commonly confused with "backdoor"?
"backdoor" is commonly confused with "backdrop", "backroom". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "backdoor"?
From back + door. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "backdoor", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

atrocity#27,727Athenian#27,726bleached#27,742ammonium#27,717

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

cheaters12 variantscivility12 variantstrillions12 variantstenacious12 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list