ECP
"ecp" is a 3-letter English headword indexed on PlainSpell.
The verdict
“ECP” is uncommon English (frequency #64,346 among 18,836 “E” headwords), classed as a noun. The kind of spelling people second-guess.
- #64,346
- frequency rank, English
- 18,836
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of emergency contraceptive pill.
Corpus desk
Index EN-ecp · ECP · English
ECP · rank #64,346 · 0 variants · 0 confusables
- FREQ-RARE #64,346
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 18,836
- PHOTO-FINISH eclecticism
Nearest frequency peer: eclecticism (-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 neighbourhood for “ECP”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- echolocation
echolocation
35,657 corpus weight
- eclecticism
eclecticism
35,656 corpus weight
- ECP
ECP
35,655 corpus weight
- ehm
ehm
35,654 corpus weight
- Elihu
Elihu
35,653 corpus weight
- Elroy
Elroy
35,652 corpus weight
What this shows Bars show where “ECP” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | ECP |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #64,346 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “ECP” sits in English frequency
Rare enough to double-check
ECP is uncommon English at frequency #64,346 among 18,836 “E” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
ECP has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is ECP, spelled E-C-P.
Definition
- 1Initialism of emergency contraceptive pill.
- 2Initialism of eosinophil cationic protein.
- 3Initialism of eyecare professional.
Recorded use
Wiktionary exampleThese source excerpts show how ECP appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
For maximum effectiveness, ECP treatment should be started as soon as possible after unprotected intercourse, and within 120 hours.
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "ECP", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.