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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)

dipsomania
nounC1
/ˌdɪp.səˈmeɪ.ni.ə/An uncontrollable, typically periodic craving for alcoholic drink.
dipsomaniac
nounLow
/ˌdɪp.səʊˈmeɪ.ni.æk/A person with an uncontrollable craving for alcohol.
dipstick
nounMedium
/ˈdɪpstɪk/A rod or strip used to measure the level of a liquid, most commonly in an engine's oil sump.
dipstick test
nounC1
/ˈdɪpstɪk ˌtɛst/A simple, quick, and often crude test or check to assess a basic condition or level.
dipsy-doodle
nounLow/Very Low
/ˈdɪpsi ˈduːd(ə)l/A deceptive, evasive, or tricky maneuver, often in the context of sports or playful trickery; a feint.
diptera
nounC2
/ˈdɪptərə/An order of insects comprising the true flies, characterized by having a single pair of wings (forewings) and hindwings modified into small balancing organs called halteres.
dipteran
adjectivenounC2 / Low
/ˈdɪptərən/A member of the insect order Diptera; a true fly, characterized by having a single pair of functional wings and a pair of reduced hind wings (halteres) used for balance.
dipteron
nounVery low
/ˈdɪptərɒn/An insect of the order Diptera, characterized by having a single pair of functional wings and a pair of halteres.
diptote
nounExtremely Low (Technical)
/ˈdɪptəʊt/In grammar, a noun (especially in languages like Arabic) that takes only two grammatical cases (typically nominative and genitive/oblique) in its declension instead of the full three or more.
diptych
nounC2
/ˈdɪp.tɪk/A painting, carving, or photograph on two hinged panels, typically forming an altarpiece.
dipyramid
nounC2
/daɪˈpɪr.ə.mɪd/A geometric solid formed by joining two congruent pyramids base-to-base.
dipyridamole
nounLow
/ˌdaɪpɪˈrɪdəməʊl/A platelet inhibitor and vasodilator medication.
diquark
nounVery Rare
/ˈdaɪkwɑːk/A hypothetical bound state of two quarks within a hadron.
diquat
nounC2
/ˈdaɪkwɒt/A non-selective contact herbicide used for weed control.
dirac
nounTechnical/Extremely Low
/ˈdɪræk/A unit of magnetic flux density equal to one Maxwell per square centimetre, used primarily in theoretical physics to measure the flux of Dirac monopoles.
dirac delta function
nounC2
/ˌdɪræk ˈdeltə ˌfʌŋkʃən/A theoretical function in mathematics and physics that is zero everywhere except at a single point, where it is infinitely high, but whose integral over the entire real line equals one; used to model an idealised point mass or impulse.
diradical
nounVery Rare / Highly Technical
/daɪˈræd.ɪ.kəl/A radical (a group of atoms) consisting of two unpaired electrons; a molecule or ion with two radical centres.
dirae
plural-nounExtremely low
/ˈdaɪriː/The plural form of 'dira', a rare and chiefly poetic term for the Furies, ancient goddesses of vengeance in Greek and Roman mythology.
dirdum
nounVery rare / Archaic / Dialectal
/ˈdɜː.dəm/A scolding, uproar, commotion, or noise; a severe reprimand.
dire straits
plural-nounC1
/ˌdaɪə ˈstreɪts/A state of extreme distress, difficulty, or danger, often financial.

Showing 3721–3740 of 7181 words.