English Words Starting With F

• fusion

  adjectivenounB2
  /ˈfjuːʒ(ə)n/The process or result of joining two or more things together to form a single entity, often with a blending of their characteristics.
• fusion bomb

  nounC2
  /ˈfjuːʒ(ə)n bɒm/A nuclear weapon that derives its explosive energy primarily from the fusion of light atomic nuclei, such as hydrogen isotopes.
• fusion reactor

  nounC1
  /ˈfjuːʒən riˈæktə/A device designed to generate energy by fusing atomic nuclei together (nuclear fusion), typically of hydrogen isotopes, mimicking the process that powers stars.
• fusionism

  nounC2
  /ˈfjuːʒənɪz(ə)m/The political or intellectual movement that seeks to combine elements from different ideologies, specifically the mid-20th-century effort to unite libertarian and traditionalist conservatives.
• fusobacteria

  plural-nounC2 / Very Rare
  /ˌfjuːzəʊbækˈtɪərɪə/A genus of obligately anaerobic, rod-shaped bacteria found in various environments, including the human oral cavity and gut.
• fuss

  nounverbverb-intransitiveverb-transitiveB1
  /fʌs/Unnecessary or excessive excitement, worry, or activity about something trivial.
• fuss and feathers

  nounC2
  /ˌfʌs ən ˈfɛðəz/Unnecessary excitement, showy display, or exaggerated attention to trivial details.
• fussbox

  nounRare / Colloquial
  /ˈfʌsbɒks/A person who is always fussing, complaining, or making a fuss about trivial matters.
• fussbudget

  nounLow to Mid Frequency
  /ˈfʌsˌbʌdʒɪt/A person who is excessively concerned with trivial details and often complains about them.
• fusspot

  nounLow-medium
  /ˈfʌspɒt/A person who is excessively concerned about minor details or who is constantly fussing.
• fustanella

  nounLow
  /ˌfʌstəˈnɛlə/A traditional white skirt-like garment, full and pleated, worn by men in Greece and Albania as part of their national dress.
• fustet

  nounExtremely rare / Obsolete
  /ˈfʌstɪt/A small European tree (Cotinus coggygria), also known as Venetian sumac or smoke tree, whose wood and leaves produce a yellow dye.
• fustian

  adjectivenounC2
  /ˈfʌs.ti.ən/Originally: a thick, coarse twilled cloth with a short nap or pile, often made of cotton and flax. Subsequently: inflated or pompous, bombastic language or writing.
• fustic

  nounC2 (very low frequency / specialist term)
  /ˈfʌstɪk/A tropical American tree, or the yellow to orange dye obtained from its wood.
• fustigate

  verbverb-transitiveC2
  /ˈfʌstɪɡeɪt/To beat with a stick; to cudgel.
• fusula

  nounVery Low (Technical/Jargon)
  /ˈfjuːzjʊlə/In arachnology, the internal organ of a spider that produces the silk thread used for the radii of its web.
• fusuma

  nounRare
  /ˈfuːsʊmə/A Japanese sliding door or partition, typically made of a wooden frame and paper, used to divide rooms in a traditional Japanese house.
• futabatei

  nounVery Low (Specialist/Technical/Architectural)
  /ˌfuː.tə.bɑːˈteɪ/A traditional Japanese style of house with a second floor that is smaller than the first floor, creating an overhang or 'flying' appearance, literally meaning 'two-story house with a projecting upper floor'.
• futhark

  nounRare
  /ˈfuːθɑːk/The runic alphabet used by Germanic peoples from roughly the 2nd to the 8th centuries.
• futilitarian

  adjectivenounVery Rare
  /ˌfjuːtɪlɪˈtɛːrɪən/A person who believes that all human effort is ultimately futile or pointless.

Showing 5801–5820 of 5868 words.