exfiltration
"exfiltration" is a 12-letter English headword indexed on PlainSpell.
The verdict
“exfiltration” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 12
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The process of exiting an area (usually behind enemy lines or in enemy territory).
Corpus desk
Index EN-exfiltration · exfiltration · English
exfiltration · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 12 letters
- VOW-5 5 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 | exfiltration |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “exfiltration” in English
Rare enough to double-check
exfiltration is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 5 senses are on record.
No misspelling variants are generated for exfiltration in our index, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.
No explicit etymology string is stored for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is exfiltration, spelled E-X-F-I-L-T-R-A-T-I-O-N.
Definition
- 1The process of exiting an area (usually behind enemy lines or in enemy territory).
- 2A method for managing storm water runoff.
- 3A filtering out (usually movement of a substance through a barrier).
- 4A gradual movement of a substance to exterior (as through cell membrane to extracellular fluid or medium).
- 5The covert extraction of data from a system.
Recorded use
Wiktionary exampleThese source excerpts show how exfiltration appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Phishing is sending emails or other electronic communications to fraudulently or unlawfully induce recipients to reveal personal or sensitive information, such as passwords, dates of birth, Social Security numbers, passport numbers, credit card information, financial information, or other sensitive information, or to gain access to accounts or records, ex…
Synonyms
Antonyms
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.