noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˌdiːɒnˈtɒləd͡ʒi/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/diˌɑnˈtɑləd͡ʒi/
rhymes with -ɒlədʒi
CMU ARPABET:D IY0 AA0 N T AA1 L AH0 JH IY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Synonym of ethics (“the study of principles relating to right and wrong conduct”).
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: moral philosophy, ethics
Antonyms: none provided
2
noun
Meaning 2
Synonym of ethics (“the study of principles relating to right and wrong conduct”).
The normative ethical theory that the morality of an action is based on whether the action follows certain obligations or rules, rather than on its inherent goodness, consequences, etc.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: moral philosophy
Antonyms: none provided
History
Etymology
Etymology tree Ancient Greek δεῖ (deî) Ancient Greek -λογῐ́ᾱ (-logĭ́ā)bor. Latin -logialbor. French -logiebor. English -logy English deontology Learned borrowing from Ancient Greek δέον (déon, “that which is binding, needful, proper, or right”) + English -ology (variant of -logy (suffix denoting a branch of learning or a study of a particular subject)). Δέον (Déon) is the neuter present participle of δεῖ (deî, “it behoves one to, it is necessary to, one must”), from δέω (déō, “to bind, tie; to fasten; to fetter”), ultimately from Proto-Indo-European *deh1- (“to bind”). Sense 1 (“synonym of ethics”) was coined by the English philosopher Jeremy Bentham (1748–1832) to refer to censorial or dicastic ethics (ethics based on judgment), while sense 1.1 (“normative ethical theory that the morality of an action should be based on whether the action follows certain obligations or rules”) derives from the use of the word deontological by the English philosopher Charlie Dunbar Broad (1887–1971) in his book Five Types of Ethical Theory (1930).
Across languages
Translations
46 source translations are retained for this English entry.
Armenian:
դեոնտոլոգիա
(deontologia)
— synonym of ethics — see also ethics
Azerbaijani:
deontologiya
— synonym of ethics — see also ethics
Bashkir:
деонтология
(deontologiya)
— synonym of ethics — see also ethics
Catalan:
deontologia
— synonym of ethics — see also ethics
Chinese Mandarin:
本務論 /本务论
(běnwùlùn)
— synonym of ethics — see also ethics
Chinese Mandarin:
道義論 /道义论
(dàoyìlùn)
— synonym of ethics — see also ethics
Chinese Mandarin:
義務論 /义务论
(yìwùlùn)
— synonym of ethics — see also ethics
Czech:
deontologie
— synonym of ethics — see also ethics
Dutch:
deontologie
— synonym of ethics — see also ethics
Esperanto:
deontologio
— synonym of ethics — see also ethics
Finnish:
deontologia
— synonym of ethics — see also ethics
Finnish:
deontologinen etiikka
— synonym of ethics — see also ethics
Finnish:
sääntöetiikka
— synonym of ethics — see also ethics
Finnish:
velvollisuusetiikka
— synonym of ethics — see also ethics
Finnish:
velvollisuusoppi
— synonym of ethics — see also ethics
French:
déontologie
— synonym of ethics — see also ethics
Galician:
deontoloxía
— synonym of ethics — see also ethics
Greek:
δεοντολογία
(deontología)
— synonym of ethics — see also ethics
Hungarian:
deontológia
— synonym of ethics — see also ethics
Hungarian:
kötelességetika
— synonym of ethics — see also ethics
Hungarian:
kötelességtan
— synonym of ethics — see also ethics
Icelandic:
skyldufræði
— synonym of ethics — see also ethics
Indonesian:
tata susila
— synonym of ethics — see also ethics
Irish:
dualeolaíocht
— synonym of ethics — see also ethics
Italian:
deontologia
— synonym of ethics — see also ethics
Kazakh:
деонтология
(deontologiä)
— synonym of ethics — see also ethics
Kazakh:
парызтану
(paryztanu)
— synonym of ethics — see also ethics
Khmer:
ករណីយកិច្ចវិទ្យា
(kɑɑnəyykeccɑɑvityiə)
— synonym of ethics — see also ethics
Kyrgyz:
деонтология
(deontologiya)
— synonym of ethics — see also ethics
Lithuanian:
deontologija
— synonym of ethics — see also ethics
Malay:
deontologi
— synonym of ethics — see also ethics
Malay:
tata susila
— synonym of ethics — see also ethics
Persian:
اخلاق وظیفهگرا
— synonym of ethics — see also ethics
Polish:
deontologia
— synonym of ethics — see also ethics
Russian:
деонтология
(deontologija)
— synonym of ethics — see also ethics
Serbo-Croatian:
деонтологија
— synonym of ethics — see also ethics
Serbo-Croatian:
deontologija
— synonym of ethics — see also ethics
Slovak:
deontológia
— synonym of ethics — see also ethics
Spanish:
deontología
— synonym of ethics — see also ethics
Swedish:
deontologi
— synonym of ethics — see also ethics
Turkish:
deontoloji
— synonym of ethics — see also ethics
Ukrainian:
деонтологія
(deontolohija)
— synonym of ethics — see also ethics
Vietnamese:
đạo nghĩa học
— synonym of ethics — see also ethics
Finnish:
deontologia
— normative ethical theory that the morality of an action should be based on whether the action follows certain obligations or rules
French:
déontologisme
— normative ethical theory that the morality of an action should be based on whether the action follows certain obligations or rules
German:
Deontologie
— normative ethical theory that the morality of an action should be based on whether the action follows certain obligations or rules