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entropy

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

7 characters

Language

English

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Source

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Detailed reference entry for the English word "entropy", 7-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "entropy" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "entropy" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

entropy is aEnglishnoun. It means: A measure of the disorder present in a system. Pronounced /ˈɛntɹəpi/. Often confused with entry.

Key facts for entropy
PropertyValue
Headwordentropy
LanguageEnglish
Part of speechNoun
IPA/ˈɛntɹəpi/
Letters7
Frequency rank#20,106
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of entropy in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for entropy is 7 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈɛntɹəpi/. Corpus data places it at rank #20,106 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 11 documented wrong-spelling variants for entropy, with forms such as "enntropy", "enrtopy", and "entorpy". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 1 confusable-pair relationship, "entry", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: First attested in 1867, as the translation of German Entropie, coined in 1865 by Rudolph Clausius in analogy to Energie (“energy”), replacing the root of Ancient Greek ἔργον (érgon, “work”) by Ancient Greek τροπή (tropḗ, “transformation”)). Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is entropy, spelled E-N-T-R-O-P-Y, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A measure of the disorder present in a system.
  2. 2
    A measure of the disorder present in a system.
  3. 3
    A measure of the amount of energy in a physical system that cannot be used to do work.
  4. 4
    The capacity factor for thermal energy that is hidden with respect to temperature.
  5. 5
    The dispersal of energy; how much energy is spread out in a process, or how widely spread out it becomes, at a specific temperature.
  6. 6
    A measure of the amount of information and noise present in a signal.
  7. 7
    The tendency of a system that is left to itself to descend into chaos.

Etymology

First attested in 1867, as the translation of German Entropie, coined in 1865 by Rudolph Clausius in analogy to Energie (“energy”), replacing the root of Ancient Greek ἔργον (érgon, “work”) by Ancient Greek τροπή (tropḗ, “transformation”)).

Synonyms

Antonyms

This word in other languages

Common misspellings

Also misspelled as: enntropy,enrtopy,entorpy,entroppy,entropyy,entroyp,entrpoy,entrropy,enttropy,etnropy,netropy

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for entropy

Misspelling Variants of "entropy"

enntropy8enrtopy7entorpy7entroppy8entropyy8entroyp7entrpoy7entrropy8
Misspelling Variants of "entropy"

Frequency rank: #20,106 in English

Frequently Asked Questions

How do you spell "entropy"?
"entropy" is spelled E-N-T-R-O-P-Y. The IPA pronunciation is /ˈɛntɹəpi/.
What does "entropy" mean?
As a noun, "entropy" means: A measure of the disorder present in a system.
What words are commonly confused with "entropy"?
"entropy" is commonly confused with "entry". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "entropy"?
The IPA (International Phonetic Alphabet) transcription for "entropy" is /ˈɛntɹəpi/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "entropy"?
First attested in 1867, as the translation of German Entropie, coined in 1865 by Rudolph Clausius in analogy to Energie (“energy”), replacing the root of Ancient Greek ἔργον (érgon, “work”) by Ancient Greek τροπή (tropḗ, “transformation”)). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Nearby English words

Other entries that begin with the letter E in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.