flat rate
"flat-rate" is a 8-letter English headword indexed on PlainSpell.
The verdict
“flat rate” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - a rate (typically of money) that does not vary over time
Corpus desk
Index EN-flat-rate · flat rate · English
flat rate · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "F" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | flat rate |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “flat rate” in English
Rare enough to double-check
flat rate is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "a rate (typically of money) that does not vary over time".
The misspelling generator found no plausible variants for flat rate, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
No documented word history exists for this headword, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is flat rate, spelled F-L-A-T- -R-A-T-E.
Definition
- 1a rate (typically of money) that does not vary over time
Recorded use
Wiktionary exampleThese source excerpts show how flat rate appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Customers are expected to pay a flat rate of £15 monthly.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.