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English Words Starting With S

15,552 entries — pick a word to see its definition, pronunciation, and usage.

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

sulk
nounverbverb-intransitiveB1
/sʌlk/To be silent, withdrawn, and bad-tempered out of resentment or disappointment.
sulky
adjectivenounC1
/ˈsʌlki/Morose, sullen, or bad-tempered, often due to resentment or disappointment; characterized by silent, withdrawn resentment.
sulla
nounC1+ (technical/historical/rare botanical term)
/ˈsʌlə/A flowering plant (genus *Hedysarum*), especially *Hedysarum coronarium*, a Mediterranean legume used as forage.
sullage
nounLow/Very Rare
/ˈsʌlɪdʒ/Wastewater or refuse from domestic activities, especially the greywater and solid waste from sinks, drains, and kitchens; also, sediment or silt deposited by water.
sullen
adjectivenounC1
/ˈsʌl.ən/Showing silent, brooding, and ill-humoured resentment; gloomy and dismal.
sullied
adjectiveverbC2
/ˈsʌl.id/made dirty, stained, or tarnished; having had purity or cleanliness compromised.
sullivan
nounLow-Frequency Proper Noun
/ˈsʌl.ɪ.vən/A proper noun, primarily a surname of Irish origin.
sullom voe
nounC2
/ˌsʌləm ˈvoʊ/A large sheltered sea inlet in the Shetland Islands, Scotland, site of a major oil terminal.
sully
nounverbverb-intransitive+1C1
/ˈsʌli/To damage or soil the purity, integrity, or reputation of something; to tarnish.
sully-prudhomme
nounVery Low
/ˌsʊli pruːˈdɒm/The surname of the French poet and essayist René François Armand Prudhomme (1839–1907), who won the first Nobel Prize in Literature in 1901.
sulphanilamide
nounLow frequency (specialist/technical)
/ˌsʌlfəˈnɪləmʌɪd/A white crystalline organic compound used as a broad-spectrum antibacterial drug.
sulphate
nounverbC1
/ˈsʌl.feɪt/A salt or ester of sulfuric acid, containing the anion SO₄²⁻.
sulphate-resisting cement
nounC2 / Technical
/ˈsʌl.feɪt rɪˌzɪst.ɪŋ sɪˈmɛnt/A type of Portland cement specially formulated to have increased resistance to attack by sulfates found in soil or groundwater.
sulphatise
verb-transitiveVery Low
/ˈsʌl.fə.taɪz/To treat or combine with sulphate.
sulphide
nounLow frequency. Common in scientific/technical contexts, rare in everyday language.
/ˈsʌl.faɪd/A chemical compound in which sulfur is combined with a metal or other electropositive element.
sulphinyl
nounVery Low (Specialist Technical Term)
/ˈsʌlfɪnɪl/A chemical functional group consisting of a sulfur atom double-bonded to an oxygen atom and single-bonded to another atom or group, typically represented as -S(=O)-.
sulphite
nounC2
/ˈsʌl.faɪt/A salt of sulphurous acid, typically used as a preservative in food and drink, or as a bleach in paper and textile manufacturing.
sulphonamide
nounC2
/ˌsʌlˈfɒnəmaɪd/Any of a class of synthetic organic compounds derived from sulfanilamide, containing the chemical group -SO₂NH₂ or its derivatives, historically used as antibacterial drugs.
sulphonate
nounverbLow (Technical)
/ˈsʌlfəneɪt/A salt or ester of sulphonic acid.
sulphone
nounC2/Technical
/ˈsʌlfəʊn/any of a class of chemical compounds characterized by the presence of a sulfonyl group linked to two carbon atoms.

Showing 13921–13940 of 15552 words.