English Words Starting With J

• jacking engine

  nounVery Low / Technical
  /ˈdʒæk.ɪŋ ˈen.dʒɪn/A stationary or portable engine, typically small, used to power a mechanical jack or lifting device.
• jackknife

  adjectivenounverbverb-intransitiveverb-transitiveC1
  /ˈdʒæknaɪf/A large folding pocket knife; a type of dive or movement where the body bends at the waist, legs straight, touching the toes.
• jackknife-fish

  nounRare
  /ˈdʒæknaɪf ˌfɪʃ/A tropical marine fish (Equetus lanceolatus) of the Atlantic, known for its distinctively long dorsal spines that can be erected.
• jackleg

  adjectivenounLow
  /ˈdʒaklɛɡ/A person who is unskilled, untrained, or incompetent in their work; an amateur.
• jacklight

  nounverb-intransitiveverb-transitiveVery Low
  /ˈdʒæk.laɪt/A strong light, often a lantern or a fire, used to attract and then hunt animals at night.
• jacklighter

  nounExtremely rare
  /ˈdʒæklaɪtə/A person who illegally sets fires, often to clear land, typically using a device like a flaming rag on a stick.
• jacklin

  nounVery Low
  /ˈdʒæk.lɪn/A surname of English origin, sometimes used as a given name.
• jackoff

  nounLow
  /ˈdʒækɒf/A person who is contemptible, ineffectual, or foolish; a term of insult.
• jackpot

  nounB2
  /ˈdʒakpɒt/The largest prize available in a game, lottery, or contest.
• jackrabbit

  adjectiveverb-intransitiveB2
  /ˈdʒækˌræb.ɪt/A large North American hare with very long ears and powerful hind legs.
• jacks

  nounC1
  /dʒæks/A plural noun referring to 1) the metal pieces used in the game of jacks, 2) mechanical devices for lifting heavy loads, or 3) (capitalised) a name or nickname.
• jackscrew

  nounC2
  /ˈdʒækˌskruː/A mechanical device consisting of a screw and a threaded hole, used to lift heavy loads or apply great pressure through linear motion by rotating the screw.
• jackshaft

  nounC2
  /ˈdʒækʃɑːft/A short, secondary driving shaft, especially one that is driven by a motor and from which other shafts are driven.
• jacksie

  nounLow
  /ˈdʒæk.si/A British slang term for the buttocks or anus.
• jacksmelt

  nounVery Low
  /ˈdʒakˌsmɛlt/A small, silvery marine fish (Atherinopsis californiensis) found in the eastern Pacific Ocean, especially off the coast of California.
• jacksnipe

  nounC2 - Very Low Frequency
  /ˈdʒæksnaɪp/A small, secretive migratory wading bird (Lymnocryptes minimus) with a long straight bill, known for its elusive, crouching behavior in marshes.
• jackson

  nounC1 (as a proper noun; rarely used generically outside names)
  /ˈdʒæksən/A surname of Scottish origin, meaning 'son of Jack/John'.
• jackson day

  nounVery Low / Obsolete
  /ˈdʒæksən deɪ/An alternative name for a bank holiday in Ireland and the United Kingdom (specifically in Northern Ireland), also known as St. Patrick's Day (March 17th), when it was historically a public holiday for bank and public service employees.
• jackson hole

  nounC1
  /ˈdʒæksən həʊl/A specific valley in Wyoming, USA, named after early settler and fur trapper David E. Jackson.
• jacksonian

  adjectivenounLow
  /dʒakˈsəʊnɪən/Relating to Andrew Jackson, the 7th U.S. President (1829–1837), or his principles, policies, or period.

Showing 101–120 of 1603 words.