FM
"fm" is a 2-letter English headword indexed on PlainSpell.
The verdict
“FM” sits in 20 confusable pairs (corpus #6,908) as a noun. The look-alike neighbours are the real trap.
- #6,908
- frequency rank, English
- 2,507
- “F” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of frequency modulation; radio programming that is broadcast in this form.
Corpus desk
Index EN-fm · FM · English
FM · rank #6,908 · 0 variants · 20 confusables
- FREQ-COMMON #6,908
- LEN-SHORT 2 letters
- VOW-0 0 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH flowing
Nearest frequency peer: flowing (-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 “FM”
Peers at similar corpus weight, separate from look-alike pairs below
- fisher
fisher
93,096 corpus weight
- flexibility
flexibility
93,095 corpus weight
- flowing
flowing
93,094 corpus weight
- FM
FM
93,093 corpus weight
- fridge
fridge
93,092 corpus weight
- functioning
functioning
93,091 corpus weight
What this shows Bars place “FM” 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 | FM |
| Language | English |
| Part of speech | Noun |
| Letters | 2 |
| Frequency rank | #6,908 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “FM”
Easy to mix with look-alikes
The spelling risk for FM is neighbouring look-alikes ("fu", "fo", …), not just typos; it is anoun. Frequency #6,908 among 2,507 “F” headwords. 12 recorded senses keep meaning in play.
No misspelling variants are generated for FM in our index, suggesting the orthography follows predictable English patterns. It also participates in 20 confusable-pair relationships, "fu", "fo", "FS", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
No borrowing history is documented for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is FM, spelled F-M.
Definition
- 1Initialism of frequency modulation; radio programming that is broadcast in this form.
- 2Initialism of field marshal.
- 3Initialism of finance minister.
- 4Initialism of foreign minister.
- 5Initialism of first minister.
- 6Initialism of finance ministry.
- 7Initialism of foreign ministry.
- 8Initialism of first ministry.
- 9Initialism of field manual.
- 10Initialism of fibromyalgia.
- 11Initialism of fan marker.
- 12Initialism of FIDE Master.
Recorded use
Wiktionary examplesThese source excerpts show how FM appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
That station is available on both AM and FM.
Enough of this endless static. Turn on the FM.
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.