FAA
"faa" is a 3-letter English headword indexed on PlainSpell.
The verdict
“FAA” sits in 20 confusable pairs (corpus #14,944) as a proper noun. The look-alike neighbours are the real trap.
- #14,944
- frequency rank, English
- 2,507
- “F” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of Federal Aviation Administration (agency regulating U.S. aviation).
Corpus desk
Index EN-faa · FAA · English
FAA · rank #14,944 · 0 variants · 20 confusables
- FREQ-MID #14,944
- LEN-MID 3 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,507
- PHOTO-FINISH equip
Nearest frequency peer: equip (-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 “FAA”
Peers at similar corpus weight, separate from look-alike pairs below
- embarked
embarked
85,060 corpus weight
- equip
equip
85,058 corpus weight
- FAA
FAA
85,057 corpus weight
- foley
foley
85,055 corpus weight
- footing
footing
85,054 corpus weight
- Fulton
Fulton
85,053 corpus weight
What this shows Bars place “FAA” 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 | FAA |
| Language | English |
| Part of speech | Proper noun |
| Letters | 3 |
| Frequency rank | #14,944 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Corpus rank beside confusables of “FAA”
Easy to mix with look-alikes
The spelling risk for FAA is neighbouring look-alikes ("fi", "FL", …), not just typos; it is aproper noun. Frequency #14,944 among 2,507 “F” headwords. 3 recorded senses keep meaning in play.
Zero misspellings are on record for FAA in our index, typically a sign the spelling maps closely to how the word sounds. It also participates in 20 confusable-pair relationships, "fi", "FL", "FM", and more, where similar look or sound leads writers to substitute one word for another in context.
This entry carries no recorded etymology, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is FAA, spelled F-A-A.
Definition
- 1Initialism of Federal Aviation Administration (agency regulating U.S. aviation).
- 2Initialism of Federal Arbitration Act (9 USC 1).
- 3Initialism of Fleet Air Arm (carrier-borne air force of the U.K.'s Royal Navy).
Recorded use
Wiktionary examplesThese source excerpts show how FAA appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Again he bats back and forth the pages of the thick clipped sheaf of close-typed pages that comprise the results of the FAA investigation into Naomi’s fatal encounter with the northwest slope of Mount Dunkelblum.
Great River Energy utilized the FAA’s Notice Criteria Tool² to determine if it would be required to file notice to the FAA prior to construction.
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 "FAA", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).