English Words: S

54,294 words · Page 408 of 1086

Siegel discnoun

A connected component in the Fatou set where the dynamics is analytically conjugate to an irrational rotation.

Siegel zeronoun

A type of potential counterexample to the generalized Riemann hypothesis, on the zeros of Dirichlet L-function.

Siegel's paradoxname

The phenomenon that uncertainty about future prices can theoretically push rational consumers to temporarily trade away their preferred consumption goods (or currency) for non-preferred goods (or currency), as part of a plan to trade back to the preferred consumption goods after prices become clearer.

Siegel-Walfisz theoremname

A particular refinement of the prime number theorem and of Dirichlet's theorem on primes in arithmetic progressions.

siegelessadj

Without a siege.

siegelikeadj

Resembling or characteristic of a siege.

siegenitenoun

An isometric-hexoctahedral mineral containing cobalt, nickel, and sulfur.

Siegenthalername

A surname from German.

siegernoun

A besieger.

siegeworknoun

A temporary fort where siege guns were mounted.

Siegfriedname

A hero of the Nibelungenlied who defeated the Icelandic queen Brunhild.

Siehname

A surname.

sieidinoun

Among the Sami people, a special site where thanks and offerings are given to the spirits.

Siekname

A surname from German

Sielaffname

A surname from German.

sieleckiitenoun

A triclinic mineral containing aluminum, copper, hydrogen, oxygen, and phosphorus.

Sielername

A surname from German.

Siem Reapname

A city in Cambodia.

Siemakname

A surname from Polish.

siemensnoun

In the International System of Units, the derived unit of electrical conductance; the electric conductance in a body that has a resistance of one ohm.

Siemens cyclename

A technique used to cool or liquefy gases, by compressing the gas (leading to an increase in its temperature due to the directly proportional relationship between temperature and pressure), then cooling it with a heat exchanger and decompressing it.

Siemens starnoun

A radial, sunburst-like test target used to measure the resolution and image quality of optical instruments, cameras, scanners, and printers.

Siemens-Martin processname

A kind of open-hearth process for producing steel.

Siemens-Martin steelnoun

open-hearth steel

Sieminskiname

A surname from Polish.

Siemonname

A surname from German.

Siemsenname

A surname from German.

Sienaname

A city and comune, the capital of the province of Siena, Tuscany, Italy.

Sienfengname

Alternative form of Xianfeng.

Siengname

A surname from Khmer.

Sienkiewiczname

A surname.

Sienkoname

A surname from Polish.

siennanoun

A form of clay containing iron and manganese.

SIernoun

A systems integrator.

Sieradzname

A city and county in Lodz Voivodeship, Poland.

Sierpinskiname

A surname from Polish.

Sierpinski carpetnoun

A plane fractal, a generalization of the Cantor set to two dimensions, formed by repeated subdivision of a square.

Sierpinski curvenoun

Any of a recursively defined sequence of continuous closed plane fractal curves which, in the limit n→∞, completely fill the unit square.

Sierpinski gasketnoun

The Sierpinski triangle.

Sierpinski numbernoun

An odd natural number k such that k×2ⁿ+1 is composite for all natural numbers n.

Sierpinski spacenoun

A two-point Alexandrov-discrete space.

Sierpinski spongenoun

The three-dimensional extension of the Sierpinski carpet.

Sierpinski trianglenoun

A fractal consisting of three copies of itself, shrunk to half size, arranged in a triangular shape without rotating.

sierranoun

A rugged range of mountains.

Sierra Blancaname

A census-designated place, the county seat of Hudspeth County, Texas, United States.

Sierra Leonename

A country in West Africa. Official name: Republic of Sierra Leone.

Sierra Leoneanadj

From or of Sierra Leone.

Sierra Leonianadj

Alternative form of Sierra Leonean.

Sierra Madrename

A city in Los Angeles County, California, United States.

Sierra Negraname

A mountain and extinct volcano in Puebla, Mexico.

Spelling & Dictionary Insight

The English alphabetical index for the letter S contains 54,294 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 1,086 pages, and you are currently viewing page 408. 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 "S" 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.