English Words: D
26,416 words · Page 1 of 529
The major key with the notes D, E, F♯, G, A, B, and C♯, the key signature of which has two sharps.
An earnest conversation covering emotional topics, often as a smaller side conversation at a social occasion.
A differential operator which may be expressed as ∂_μ∂^μ=∑_(μ=0)³∂/∂x^μ∂/∂x_μ; it is the four-dimensional (Minkowski space) equivalent of the three-dimensional Laplace operator.
A first-order nonlinear ordinary differential equation: y=xf((dy)/(dx))+g((dy)/(dx)).
The general solution to the one-dimensional wave equation u_tt-c^(2u_)xx=0,,u(x,0)=g(x),,u_t(x,0)=h(x), for -∞0.
The contradiction that, for incompressible and inviscid potential flow, the drag force is zero on a body moving with constant velocity relative to the fluid.
A statement of the fundamental classical laws of motion, generalizing the principle of virtual work from static to dynamical systems by introducing forces of inertia which, when added to the applied forces in a system, result in dynamic equilibrium.
An early form of electrotherapy using a spark-excited resonant circuit to generate currents of 0.5 to 2 MHz.
A highest-averages method for allocating seats, used to achieve proportional representation in elections, and often favoring large parties and coalitions.
A style of handwriting intended to make it easier for children to learn to write English.
An island on the outer edge of the Marlborough Sounds, Marlborough, New Zealand.
A small protein fragment present in the blood after a blood clot is degraded by fibrinolysis, used in the diagnosis of deep vein thrombosis, pulmonary embolism, etc.
A major key with the notes D♭, E♭, F, G♭, A♭, B♭, C, the key signature of which has five flats.
Spelling & Dictionary Insight
The English alphabetical index for the letter D contains 26,416 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 529 pages, and you are currently viewing page 1. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "D" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.