epi-
"epi" is a 3-letter English headword indexed on PlainSpell.
The verdict
“epi-” is uncommon English (outside the top frequency list), classed as a prefix. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 4
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Above in location or position.
Corpus desk
Index EN-epi · epi- · English
epi- · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MID 4 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "E" 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 | epi- |
| Language | English |
| Part of speech | Prefix |
| Letters | 4 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “epi-” in English
Rare enough to double-check
epi- is uncommon English outside the top frequency list, classed as aprefix. Rarity is why readers land here mid-draft. 27 senses are on record.
epi- has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From Ancient Greek ἐπί (epí, “on top of”). The correct English form is epi-, spelled E-P-I--.
Definition
- 1Above in location or position.
- 2Upon, atop, directly on top of in terms of position.
- 3Relating to epigenetics.
- 4Secondary: a consequence, by-product, additional, or lesser version.
- 5A part or segment that is located on the upper part of an object.
- 6A part or location that is outer, particularly an outer layer.
- 7Denotes an epimeric form.
- 8Located on the surface.
- 9Epibiotic: an organism that lives on another organism.
- 10Outward in direction or projection.
- 11More, above a usual quantity, additional in quantity.
- 12Beyond, meta, transcending.
- 13Epidemiology
- 14Near in position.
- 15Outranked, above in rank.
- 16Surrounding in position: the edges of the root entity.
- 17Covering: the root entity is covered.
- 18After in time.
- 19Overlapping in position.
- 20Mapping onto, passing along, resolving to.
- 21Top: a part that is positioned at the uppermost of multiple levels.
- 22Front or anterior in position.
- 23Entirety, a system being referred to as a whole.
- 24Outside of in position.
- 25Shallow in depth.
- 26Similar, in the same form of, resembling.
- 27Upwards in direction or growth.
Recorded use
Wiktionary examplesThese source excerpts show how epi- appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
epichromosomal
epiphenomenon
Etymology
From Ancient Greek ἐπί (epí, “on top of”).
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.