enthalpy
/ˈɛn.θəl.piː/
"enthalpy" is a 8-letter English headword indexed on PlainSpell.
The verdict
“enthalpy” is an uncommon English word, ranked #60,792 in English word frequency and used as a noun.
- #60,792
- frequency rank, English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A measure of the heat content of a chemical or physical system.
| Property | Value |
|---|---|
| Headword | enthalpy |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɛn.θəl.piː/ |
| Letters | 8 |
| Frequency rank | #60,792 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “enthalpy” sits in English frequency
Spelling & Dictionary Insight
The English entry for enthalpy is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɛn.θəl.piː/. Corpus data places it at rank #60,792 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A measure of the heat content of a chemical or physical system.".
The misspelling generator found no plausible variants for enthalpy, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From Ancient Greek ἐν- (en-, “in”) + θάλπω (thálpō, “to warm”). Coined by Dutch physicist Heike Kamerlingh Onnes, but first used in print by J. P. Dalton in 1909 in a paper titled "Researches on the Joule-Kelvin-effect, especially at low temperatures". The correct English form is enthalpy, spelled E-N-T-H-A-L-P-Y.
Definition
- 1A measure of the heat content of a chemical or physical system.
Etymology
From Ancient Greek ἐν- (en-, “in”) + θάλπω (thálpō, “to warm”). Coined by Dutch physicist Heike Kamerlingh Onnes, but first used in print by J. P. Dalton in 1909 in a paper titled "Researches on the Joule-Kelvin-effect, especially at low temperatures".
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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Using “enthalpy”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-N-T-H-A-L-P-Y - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɛn.θəl.piː/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
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.