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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)

semitone
nounLow
/ˈsɛmɪtəʊn/The smallest musical interval commonly used in Western music, equal to half a tone (e.g., the interval from C to C♯).
semitrailer
nounC1
/ˌsemiˈtreɪlə/A trailer without a front axle, designed to be attached to and supported by a tractor unit (truck cab).
semitruck
nounC1-C2
/ˈsem.iˌtrʌk/A large truck consisting of a powerful tractor unit pulling a detachable trailer.
semivegetarian
adjectivenounLow
/ˌsɛmɪˌvɛdʒɪˈteəriən/A person who primarily follows a vegetarian diet but occasionally eats meat or fish.
semivowel
nounC2
/ˈsemiˌvaʊəl/A sound in speech that functions as a vowel but acts as a consonant in syllable structure.
semiweekly
adjectiveadverbnounC1
/ˌsɛmɪˈwiːkli/occurring twice a week
semmelweis
nounLow
/ˈsɛməlvaɪs/A proper noun referring to Ignaz Semmelweis, a 19th-century Hungarian physician known for discovering the importance of hand hygiene in preventing puerperal fever.
semmes
nounVery Low
/sɛmz/A proper noun, almost exclusively a surname.
semmit
nounRare/Archaic
/ˈsɛmɪt/A sleeveless, close-fitting undershirt or vest, typically worn next to the skin.
semolina
nounB2
/ˌsem.əˈliː.nə/Coarse, purified wheat middlings used primarily for making pasta, puddings, and porridge.
sempach
nounVery Low
/ˈsɛmpɑːx/A proper noun, the name of a town and municipality in central Switzerland.
sempervivum
nounLow
/ˌsɛmpəˈvʌɪvəm/A type of hardy succulent plant, commonly called houseleek, known for its rosette shape and ability to survive in dry, poor soil.
sempstress
nounRare / Archaic / Historical
/ˈsɛmpstrəs/A woman who sews, especially a woman whose occupation is sewing; a seamstress.
semtex
nounC2
/ˈsɛmtɛks/A powerful, plastic explosive, particularly notorious for its use in terrorist acts and military operations.
sen.
abbreviationnounMedium
/ˈsiːniə/Abbreviation for 'senior', used to denote the elder of two individuals with the same name, typically in formal contexts.
sena
nounRare
/ˈsiːnə/A river in south-central England, a tributary of the Thames; also an archaic or poetic term for an assembly, council, or parliament.
senarius
nounVery Rare / Obscure / Technical
/sɪˈnɛərɪəs/In Latin prosody, a line of verse consisting of six metrical feet, especially iambic.
senarmontite
nounVery Low
/ˌsɛnɑːˈmɒntʌɪt/A cubic mineral consisting of antimony trioxide.
senate
nounC1
/ˈsɛn.ɪt/The upper house of a bicameral legislature, especially in the United States and various other countries; also, the governing body of certain universities.
senator
nounB2
/ˈsen.ə.tər/A member of a senate, especially an elected member of a legislative body in a government.

Showing 3781–3800 of 15552 words.