effusion
"effusion" is a 8-letter English headword indexed on PlainSpell.
The verdict
“effusion” is uncommon English (frequency #58,656 among 2,246 “E” headwords), classed as a noun. The kind of spelling people second-guess.
- #58,656
- frequency rank, English
- 2,246
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A liquid outpouring.
Corpus desk
Index EN-effusion · effusion · English
effusion · rank #58,656 · 0 variants · 0 confusables
- FREQ-RARE #58,656
- LEN-LONG 8 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,246
- PHOTO-FINISH duplicitous
Nearest frequency peer: duplicitous (-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.
Long-tail ranks near “effusion”
Sparse band: bars invert rank so rarer forms read shorter
- dro
dro
41,349 corpus weight
- duplicitous
duplicitous
41,346 corpus weight
- effusion
effusion
41,345 corpus weight
- eggman
eggman
41,344 corpus weight
- eggnog
eggnog
41,343 corpus weight
- electromagn…
electromagnetism
41,342 corpus weight
What this shows Long-tail view: where “effusion” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | effusion |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #58,656 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “effusion” in English
Rare enough to double-check
effusion is uncommon English at frequency #58,656 among 2,246 “E” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.
effusion doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: Borrowed from Middle French effusion, from Latin effūsiō (“outpouring”). Displaced native Old English āgotennes. The correct English form is effusion, spelled E-F-F-U-S-I-O-N.
Definition
- 1A liquid outpouring.
- 2Process of gases passing through a hole or holes considerably smaller than the mean free path of the gas molecules.
- 3An outpouring of speech or emotion.
- 4The seeping of fluid into a body cavity; the fluid itself.
Recorded use
Wiktionary examplesThese source excerpts show how effusion appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
1930; George S. Kaufman, Morrie Ryskind, Bert Kalmar, Harry Ruby; Animal Crackers, Paramount Pictures Captain Spaulding: My friends, I am highly gratified by this magnificent display of effusion […]
The housekeeper, a very decorative brunette of thirty-five with a pseudo-English accent, greeted him with a mixture of grateful effusion and condescending patronage.
Etymology
Borrowed from Middle French effusion, from Latin effūsiō (“outpouring”). Displaced native Old English āgotennes.
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); 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 "effusion", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).