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English Words Starting With D

7,181 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Suffix Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

diabolism
nounC2
/daɪˈæb.əl.ɪ.zəm/Belief in or worship of the Devil; the practice of sorcery or black magic.
diabolize
verbverb-transitiveLow
/daɪˈæb.ə.laɪz/To portray as diabolical or evil; to make demonic.
diabolo
nounC2/Rare
/dɪˈæb.ə.ləʊ/A juggling prop consisting of a spool spun and balanced on a string attached to two handsticks.
diacaustic
adjectivenounVery Rare
/ˌdaɪəˈkɔːstɪk/A caustic curve formed by refraction of light rays.
diacetic acid
nounLow
/ˌdaɪəˈsiːtɪk ˈæsɪd/A chemical compound, specifically the keto form of acetoacetic acid, important in ketone body metabolism.
diacetone alcohol
nounVery Low
/daɪˌæsɪtəʊn ˈælkəhɒl/A colourless, flammable, organic chemical compound primarily used as a solvent in coatings, resins, and as a chemical intermediate.
diacetyl
nounC2
/ˌdaɪəˈsiːtʌɪl/A chemical compound (CH3CO)2, a diketone that gives a buttery flavour and aroma, often used as a flavouring agent.
diacetylmorphine
nounC2+ / Very Low
/ˌdaɪ.əˌsiː.təlˈmɔː.fiːn/A highly addictive semi-synthetic opioid drug derived from morphine.
diachronic linguistics
nounC2
/ˌdaɪəˌkrɒnɪk lɪŋˈɡwɪstɪks/The study of language change over time.
diachronism
nounVery Low
/daɪˈæk.rə.nɪ.zəm/The phenomenon of something existing or occurring at a different time from what is expected or typical, especially in geology or linguistics.
diachrony
nounlow
/daɪˈæk.rə.ni/the study or analysis of language as it changes through time; historical development.
diachylon
nounVery Low Frequency
/daɪˈækɪlɒn/A type of adhesive plaster or ointment.
diacid
adjectivenounC2 / Very Low Frequency / Technical
/daɪˈas.ɪd/A substance, especially an acid or alcohol, containing two acidic hydrogen atoms or two replaceable hydroxyl groups.
diaconate
nounC2
/daɪˈækənət/The office, period of service, or collective body of deacons in Christian churches.
diaconicon
nounExtremely Rare
/daɪˈækɒnɪkɒn/A liturgical vessel or cabinet in Eastern Christian churches.
diacope
nounC2
/daɪˈækəpi/A rhetorical term for a figure of speech where a word or phrase is separated by intervening words.
diacritic
adjectivenounC2
/ˌdaɪ.əˈkrɪt.ɪk/A mark added to a letter to change its sound or meaning.
diadem
nounverbverb-transitiveC2
/ˈdʌɪədɛm/A jewelled crown or headband worn as a symbol of royalty.
diadem spider
nounC1/C2 (specialized/natural history)
/ˈdaɪ.ə.dem ˌspaɪ.də/A European orb-weaving spider, Araneus diadematus, easily recognized by the distinctive white cross pattern on its abdomen.
diadochi
plural-nounC2
/daɪˈædəkaɪ/The generals and successors of Alexander the Great who fought for control over his empire after his death in 323 BC.

Showing 2901–2920 of 7181 words.