S 15-letter words that start with S (254)

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sabermetricians (21)saccharomycetes (29)sacramentalisms (21)sacramentalists (19)sacrosanctities (19)sadomasochistic (25)sagaciousnesses (18)salaciousnesses (17)sanctifications (22)sanctimoniously (22)saponaceousness (19)saponifications (22)saprogenicities (20)saprophytically (30)schematizations (31)schistosomiases (22)schistosomiasis (22)schoolmasterish (25)scintillometers (19)sclerotizations (26)sculpturesquely (31)seaworthinesses (21)seclusivenesses (20)secondarinesses (18)secretivenesses (20)secularizations (26)securitizations (26)sedimentologies (19)sedimentologist (19)seditiousnesses (16)seductivenesses (21)segregationists (17)selectivenesses (20)semiabstraction (21)semicentennials (19)semicolonialism (21)semicrystalline (22)semicylindrical (25)semidocumentary (25)semilogarithmic (25)semipornography (28)semiretirements (19)semisubmersible (23)semiterrestrial (17)semitranslucent (19)semitransparent (19)sensationalised (16)sensationalises (15)sensationalisms (17)sensationalists (15)sensationalized (25)sensationalizes (24)senselessnesses (15)sensitivenesses (18)sensualizations (24)sententiousness (15)sentimentalised (18)sentimentalises (17)sentimentalisms (19)sentimentalists (17)sentimentalized (27)sentimentalizes (26)separablenesses (19)septendecillion (20)septuagenarians (18)serendipitously (21)seroconversions (20)serviceableness (22)servomechanisms (27)sesquicarbonate (28)sesquicentenary (29)shamelessnesses (20)shapelessnesses (20)shiftlessnesses (21)sidesplittingly (22)sightlessnesses (19)sigmoidoscopies (23)silicifications (22)silversmithings (24)silviculturally (23)silviculturists (20)simplifications (24)sinterabilities (17)slaughterhouses (22)sledgehammering (25)sleeplessnesses (17)snippersnappers (23)socialistically (22)sociobiological (22)sociobiologists (20)socioculturally (22)sociohistorical (22)sociolinguistic (20)softheartedness (22)solderabilities (18)solidifications (21)solipsistically (22)solitudinarians (16)solubilizations (26)somnambulations (21)sophisticatedly (26)sophistications (22)sorrowfulnesses (21)specialisations (19)specializations (28)spectrographies (25)spectroscopists (23)spermatogeneses (20)spermatogenesis (20)spinelessnesses (17)spinthariscopes (24)spiritualnesses (17)splendiferously (24)splenectomizing (31)spontaneousness (17)sporangiophores (23)spreadabilities (20)sprightlinesses (21)squeamishnesses (29)squeezabilities (35)stadtholderates (20)stadtholdership (25)standardization (26)standoffishness (25)statelessnesses (15)steadfastnesses (19)steeplechasings (23)stereochemistry (25)stereoisomerism (19)stereologically (21)stereotaxically (27)stereotypically (25)steroidogeneses (17)steroidogenesis (17)stigmatizations (27)stockbrokerages (28)stoichiometries (22)straightforward (26)straightjackets (32)straitjacketing (29)straitlacedness (18)stratifications (20)stratovolcanoes (20)strenuousnesses (15)streptobacillus (21)streptothricins (22)strikebreakings (26)strongyloidoses (20)strongyloidosis (20)structuralizing (27)stultifications (20)stylelessnesses (18)subcategorizing (30)subcommissioned (24)subcontraoctave (24)subdevelopments (25)subinfeudations (21)submetacentrics (23)suboptimization (30)subordinateness (18)suborganization (27)subprofessional (22)subproletariats (19)subreptitiously (22)subspecializing (31)substantialness (17)substantiations (17)substantiveness (20)substantivizing (30)substitutionary (20)subterraneously (20)suburbanization (28)subvocalization (31)succinylcholine (27)sulfinpyrazones (32)sulfurousnesses (18)sumptuousnesses (19)superablenesses (19)superabsorbents (21)superabundances (22)superabundantly (23)superactivities (22)superannuations (17)superbureaucrat (21)supercalendered (21)superconducting (23)superconductive (25)superconductors (22)supercontinents (19)superconvenient (22)superefficiency (30)superelevations (20)supererogations (18)superfluidities (21)superfluousness (20)supergovernment (23)superheterodyne (24)superhumanities (22)superimposition (21)superindividual (22)superinductions (20)superinfections (22)superintendence (20)superintendency (23)superintendents (18)superlativeness (20)supermajorities (26)supernaturalism (19)supernaturalist (17)supernumeraries (19)supernutritions (17)superovulations (20)superparasitism (21)superpatriotism (21)superphenomenon (24)superphosphates (27)superplasticity (24)supersaturating (18)supersaturation (17)superscriptions (21)superspecialist (21)superspectacles (23)superstimulated (20)superstimulates (19)superstitiously (20)superstructural (19)superstructures (19)supersubtleties (19)supersymmetries (24)supplementation (21)suppressibility (24)suppressiveness (22)surreptitiously (20)survivabilities (23)susceptibleness (21)suspensefulness (20)swellheadedness (23)sycophantically (30)syllabification (25)syllogistically (24)symmetricalness (24)symmetrizations (31)sympathectomies (29)sympathetically (30)sympathomimetic (31)symptomatically (29)symptomatologic (27)synchronicities (25)synchronisation (23)synchronization (32)synchronousness (23)synecdochically (31)synergistically (24)systematization (29)