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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)

supercargo
nounRare
/ˈsuːpəˌkɑːɡəʊ/A ship's officer responsible for managing the cargo and handling commercial transactions during a voyage.
supercede
verb-transitiveC1/C2
/ˌsuː.pəˈsiːd/To replace something older, less effective, or outdated.
supercell
nounC1
/ˈsuːpəˌsɛl/A severe, long-lived thunderstorm characterised by a deep, persistently rotating updraft (mesocyclone).
supercentenarian
adjectivenounVery Low
/ˌsuːpəsɛntɪˈnɛːrɪən/A person who is 110 years old or older.
supercharge
verbverb-transitiveC1
/ˈsuːpətʃɑːdʒ/To charge (a battery or device) at a much faster rate than normal; to add a supercharger (forced induction) to an engine to dramatically increase its power output.
supercharger
nounB2
/ˈsuːpəˌtʃɑːdʒə(r)/A device that forces extra air into an internal combustion engine to increase power output.
superchurch
nounVery low
/ˈsuːpətʃɜːtʃ/A very large and influential church, often with a massive congregation and modern facilities.
superciliary ridge
nounVery Low
/ˌsuːpəˈsɪlɪəri rɪdʒ/The bony ridge above the eye socket.
supercilium
nounVery Low
/ˌsuːpəˈsɪlɪəm/The eyebrow or the arch of skin and hair above the eye.
supercity
nounLow
/ˈsuːpəˌsɪti/A very large city, typically formed by the merging and expansion of multiple urban areas.
superclass
nounLow (C1/C2)
/ˈsuːpəklɑːs/A class that is higher in a hierarchy and from which other classes inherit properties or behaviours. A high-level taxonomic category ranking above a class.
supercluster
nounC1
/ˈsuː.pəˌklʌs.tə/A vast group of galaxies bound together by gravity; the largest known gravitationally bound structures in the universe.
supercoil
nounC2 (Very Low Frequency)
/ˈsuːpəkɔɪl/The highly twisted and compacted form of a DNA double helix, where it coils upon itself like a twisted rubber band.
supercollider
nounC2
/ˌsuːpəkəˈlaɪdə(r)/A very large particle accelerator, designed to smash subatomic particles together at extremely high energies to study fundamental physics.
supercolumniation
nounRare
/ˌsuːpəkəˌlʌmniˈeɪʃən/The vertical arrangement of one order of columns above another in multi-storey Classical architecture.
supercomputer
nounC1
/ˌsuːpəkəmˈpjuːtə/A computer with extremely high processing power, designed to solve complex scientific and engineering problems.
superconductivity
nounC2
/ˌsuːpəkɒndʌkˈtɪvəti/The property of certain materials to conduct electric current with zero electrical resistance.
supercontinent
nounTechnical
/ˌsuːpəˈkɒntɪnənt/A very large landmass comprising multiple continents merged together, such as Pangaea.
supercool
adjectiveverbverb-intransitive+1C1
/ˌsuːpəˈkuːl/To cool a liquid below its freezing point without it solidifying.
supercow
nounVery Low
/ˈsuːpəkaʊ/A cow that has been genetically modified or selectively bred to produce exceptionally high yields of milk.

Showing 14221–14240 of 15552 words.