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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)

semimonthly
adjectiveadverbnounC1
/ˌsɛmɪˈmʌnθli/Occurring, done, or published twice a month.
seminal fluid
nounC1/C2
/ˌsem.ɪ.nəl ˈfluː.ɪd/The fluid produced by the male reproductive system, containing spermatozoa.
seminal principle
nounC1/C2 (Low frequency, specialized)
/ˈsem.ɪ.nəl ˈprɪn.sə.pəl/A fundamental, original, and highly influential idea or rule that serves as the foundation for a system of thought, theory, or practice.
seminal vesicle
nounLow
/ˈsɛmɪnəl ˈvɛsɪk(ə)l/A pair of glands in the male reproductive system that produce a significant portion of the fluid that constitutes semen.
seminar
nounB2
/ˈsem.ɪ.nɑː(r)/A meeting for an exchange of ideas; a class at a university or college in which a topic is discussed by a teacher and a small group of students.
seminarian
nounLow-frequency
/ˌsɛmɪˈneərɪən/A student training for the priesthood, typically at a seminary.
seminary
nounC1/C2
/ˈsem.ɪ.nər.i/A school or college for training men to become priests, ministers, or rabbis.
semination
nounVery Low
/ˌsɛmɪˈneɪʃ(ə)n/The act or process of sowing seeds; dissemination.
seminiferous tubule
nounRare
/ˌsɛmɪˈnɪfərəs ˈtjuːbjuːl/One of the microscopic, thread-like tubes in the testicles where sperm cells are produced.
seminole
adjectivenounC1
/ˈsɛmɪnəʊl/A member of a Native American people originally from Florida, now also with communities in Oklahoma.
seminole wars
nounC2
/ˈsɛmɪnəʊl wɔːz/A series of three major conflicts in the 19th century between the United States government and the Seminole people of Florida.
seminoma
nounRare
/ˌsɛmɪˈnəʊmə/A malignant tumor that originates in the cells that produce sperm in the testicle (or rarely in other germ cells).
semiochemical
nounC2
/ˌsɛmiəʊˈkɛmɪk(ə)l/A chemical substance used for communication between organisms of the same or different species.
semiology
nounC1/C2
/ˌsiː.miˈɒl.ə.dʒi/The study of signs and symbols, especially in language, communication, and culture.
semiotic
adjectivenounC1/C2
/ˌsɛmɪˈɒtɪk/Relating to signs and symbols and their use or interpretation.
semiotician
nounC2
/ˌsem.i.əˈtɪʃ.ən/A scholar or expert in semiotics, the study of signs and symbols and their use or interpretation.
semiotics
nounlow
/ˌsiːmiˈɒtɪks/The study of signs and symbols and their use in communication.
semipalatinsk
nounLow
/ˌsɛmɪpæləˈtɪnsk/A city in northeastern Kazakhstan, historically significant as a former Soviet nuclear test site.
semipalmated plover
nounLow
/ˌsɛmɪˈpɑːmɪtɪd ˈplʌvə/A small, stocky migratory shorebird (Charadrius semipalmatus) with a partial webbing between its toes.
semipalmated sandpiper
nounLow
/ˌsɛmɪˈpɑːmɪtɪd ˈsændpaɪpə/A small migratory shorebird with partially webbed feet, commonly found in the Americas.

Showing 3741–3760 of 15552 words.