thermodynamics

/ˌθɜː(ɹ)moʊdaɪˈnæmɪks/noun

thermodynamics is spelled T-H-E-R-M-O-D-Y-N-A-M-I-C-S: 14 letters and 5 syllables. It appears 1.3 times per million words in written English, the 25,367th most frequent word form (wordfreq, 2021 data). As a noun, thermodynamics means “The science of the conversions between heat and other forms of energy” (English Wiktionary, September 2026).

How many letters and syllables are in thermodynamics?

Letters	14: T-H-E-R-M-O-D-Y-N-A-M-I-C-S
Syllables	5 (from its American pronunciation)
In writing	1.3 times per million words; the 25,367th most frequent word form
Wrong spellings searched	none measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is thermodynamics?

Thermodynamics appears 1.3 times per million words in written English, the 25,367th most frequent word form in the list.

thermodynamics0.0010.010.11101001,00010,000

rarerper million words of written Englishmore common

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce thermodynamics?

/ˌθɜː(ɹ)moʊdaɪˈnæmɪks/
/-məʊ-/
/-mə-/

Thermodynamics has 5 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-thermodynamics.wav, Wikimedia Commons (author and licence on each file's page).

What does thermodynamics mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

1
The science of the conversions between heat and other forms of energy.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Thermodynamics in Spanish, French, German and Portuguese

In the sense science of heat-energy conversion:

Language	Words
French	thermodynamique
German	Thermodynamik, Wärmelehre
Portuguese	termodinâmica
Spanish	termodinámica

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.