flat
/flæt/
"flat" is a 4-letter English headword indexed on PlainSpell.
The verdict
“flat” has 6 generated spelling variants in the English index at frequency #1,941. The variants make it a useful spelling check.
- #1,941
- frequency rank, English
- 2,507
- “F” headwords
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having no variations in height.
Corpus desk
Index EN-flat · flat · English
flat · rank #1,941 · 6 variants · 20 confusables
- FREQ-COMMON #1,941
- LEN-MID 4 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-MID 6 variants
- BOOK-MID 2,507
- PHOTO-FINISH festival
Nearest frequency peer: festival (-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 “flat”
Same rarity band: useful when a typo lands on a peer headword
- facts
facts
98,063 corpus weight
- failure
failure
98,062 corpus weight
- festival
festival
98,061 corpus weight
- flat
flat
98,060 corpus weight
- fuel
fuel
98,059 corpus weight
- harry
harry
98,058 corpus weight
What this shows “flat” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.
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 | flat |
| Language | English |
| Part of speech | Adjective |
| IPA | /flæt/ |
| Letters | 4 |
| Frequency rank | #1,941 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “flat”
A misspelling magnet
The generator records 6 spelling variants around flat (IPA /flæt/), anadjective. Corpus frequency is #1,941 among 2,507 “F” headwords. Wiktionary lists 30 senses, so context still picks the gloss.
Our generated misspelling index lists 6 likely wrong-spelling variants for flat, with forms such as "falt", "fflat", and "flatt". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "fly", "flu", "Flo", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From Middle English flat, a borrowing from Old Norse flatr (compare Norwegian and Swedish flat, Danish flad), from Proto-Germanic *flataz, from Proto-Indo-European *pleth₂- (“flat”); akin to Saterland Frisian flot (“smooth”), German Flöz (“a geological laye… The correct English form is flat, spelled F-L-A-T.
Definition
- 1Having no variations in height.
- 2Having no variations in height.
- 3Having no variations in height.
- 4Having no variations in height.
- 5Without variation in level, quantity, value, tone etc.
- 6Without variation in level, quantity, value, tone etc.
- 7Without variation in level, quantity, value, tone etc.
- 8Without variation in level, quantity, value, tone etc.
- 9Without variation in level, quantity, value, tone etc.
- 10Without variation in level, quantity, value, tone etc.
- 11Lacking liveliness or action; depressed; uninteresting; dull and boring.
- 12Lacking liveliness or action; depressed; uninteresting; dull and boring.
- 13Lowered by one semitone.
- 14Of a note or voice, lower in pitch than it should be.
- 15Absolute; downright; peremptory.
- 16Deflated, especially because of a puncture.
- 17With all or most of its carbon dioxide having come out of solution so that the drink no longer fizzes or contains any bubbles.
- 18Lacking acidity without being sweet.
- 19Unable to emit power; dead.
- 20Without spin; spinless.
- 21Sonant; vocal, as distinguished from a sharp (non-sonant) consonant.
- 22Not having an inflectional ending or sign, such as a noun used as an adjective, or an adjective as an adverb, without the addition of a formative suffix; or an infinitive without the sign "to".
- 23Having a head at a very obtuse angle to the shaft.
- 24Flattening at the ends.
- 25Exact.
- 26Such that the tensor product preserves exact sequences. See Flat module on Wikipedia.Wikipedia.
- 27Such that its target, regarded as a module over its source, is flat (as above).
- 28Such that the induced map on every stalk is flat (as a map of rings).
- 29Having little froth and little milk.
- 30Foolish; simple-minded.
Recorded use
Wiktionary examplesThese source excerpts show how flat appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The land around here is flat.
The surface of the mirror must be completely flat.
Etymology
From Middle English flat, a borrowing from Old Norse flatr (compare Norwegian and Swedish flat, Danish flad), from Proto-Germanic *flataz, from Proto-Indo-European *pleth₂- (“flat”); akin to Saterland Frisian flot (“smooth”), German Flöz (“a geological layer”), Ancient Greek πλατύς (platús), Latvian plats, Sanskrit प्रथस् (prathas, “extension”). Doublet of plat and pleyt. The noun is from Middle English flat (“level piece of ground, flat edge of a weapon”), from the adjective. The algebraic sense was coined by Serre in a 1956 paper, originally as French plat.
Synonyms
This word in other languages
Common misspellings
Also misspelled as:
- falt
- fflat
- flatt
- fllat
- flta
- lfat
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of flat - 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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "flat", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 4 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (6 here; floor ≥5).