FL
"fl" is a 2-letter English headword indexed on PlainSpell.
The verdict
“FL” sits in 20 confusable pairs (corpus #6,140) as a noun. The look-alike neighbours are the real trap.
- #6,140
- frequency rank, English
- 2,507
- “F” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Abbreviation of foreign language.
Corpus desk
Index EN-fl · FL · English
FL · rank #6,140 · 0 variants · 20 confusables
- FREQ-COMMON #6,140
- LEN-SHORT 2 letters
- VOW-0 0 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH fixing
Nearest frequency peer: fixing (-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.
Frequency neighbours of confusable “FL”
Peers at similar corpus weight, separate from look-alike pairs below
- euro
euro
93,865 corpus weight
- fixing
fixing
93,862 corpus weight
- FL
FL
93,861 corpus weight
- flags
flags
93,860 corpus weight
- flies
flies
93,859 corpus weight
- forecast
forecast
93,858 corpus weight
What this shows Bars place “FL” against nearest ranked English headwords, not a reprint of the confusable-pair desk.
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 | FL |
| Language | English |
| Part of speech | Noun |
| Letters | 2 |
| Frequency rank | #6,140 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “FL”
Easy to mix with look-alikes
The spelling risk for FL is neighbouring look-alikes ("FM", "fu", …), not just typos; it is anoun. Frequency #6,140 among 2,507 “F” headwords. 4 recorded senses keep meaning in play.
No misspelling variants are generated for FL in our index, typically a sign the spelling maps closely to how the word sounds. It also participates in 20 confusable-pair relationships, "FM", "fu", "fo", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
No explicit etymology string is stored for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is FL, spelled F-L.
Definition
- 1Abbreviation of foreign language.
- 2Abbreviation of flight level.
- 3Abbreviation of French letter.
- 4Abbreviation of female lead.
Recorded use
Wiktionary examplesThese source excerpts show how FL appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
‘Well, what did he recommend? Those effells are a pain in the neck, only for bachelors.’
Used and discarded Fls–French letters–floated in the slime, little opaque vessels carrying human seed into oblivion.
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.