transpiration
"transpiration" is a 13-letter English headword indexed on PlainSpell.
The verdict
“transpiration” is uncommon English (frequency #82,864 among 27,828 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #82,864
- frequency rank, English
- 27,828
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The loss of water by evaporation in terrestrial plants, especially through the stomata; accompanied by a corresponding uptake from the roots.
Corpus desk
Index EN-transpiration · transpiration · English
transpiration · rank #82,864 · 0 variants · 0 confusables
- FREQ-RARE #82,864
- LEN-MEGA 13 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 27,828
- PHOTO-FINISH transposing
Nearest frequency peer: transposing (+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 “transpiration”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- Tonopah
Tonopah
17,141 corpus weight
- transiently
transiently
17,139 corpus weight
- transpirati…
transpiration
17,137 corpus weight
- transposing
transposing
17,136 corpus weight
- tretinoin
tretinoin
17,134 corpus weight
- tricyclic
tricyclic
17,133 corpus weight
What this shows Bars show where “transpiration” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | transpiration |
| Language | English |
| Part of speech | Noun |
| Letters | 13 |
| Frequency rank | #82,864 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “transpiration” sits in English frequency
Rare enough to double-check
transpiration is uncommon English at frequency #82,864 among 27,828 “T” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
transpiration 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, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: Borrowed from Middle French transpiration, from Medieval Latin transpiratio, from transpiro, from Latin trans + spiro. The correct English form is transpiration, spelled T-R-A-N-S-P-I-R-A-T-I-O-N.
Definition
- 1The loss of water by evaporation in terrestrial plants, especially through the stomata; accompanied by a corresponding uptake from the roots.
- 2The process of giving off water vapour through the skin or mucous membranes.
- 3The passage of gases through fine tubes.
Etymology
Borrowed from Middle French transpiration, from Medieval Latin transpiratio, from transpiro, from Latin trans + spiro.
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.
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 "transpiration", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 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.