English Words Starting With F

• fumigate

  verbverb-transitiveC1
  /ˈfjuːmɪɡeɪt/To disinfect or purify an area by exposing it to the fumes of a chemical, typically to kill pests or germs.
• fumigation

  nounC1
  /ˌfjuːmɪˈɡeɪʃən/The process of using fumes or gas, especially to disinfect, purify, or exterminate pests.
• fumigator

  nounC2
  /ˈfjuːmɪɡeɪtə(r)/A device, machine, or substance used to eliminate pests or disinfect an area by filling it with poisonous fumes or vapor.
• fuming nitric acid

  nounLow
  /ˈfjuːmɪŋ ˌnaɪtrɪk ˈæsɪd/A highly concentrated and reactive form of nitric acid that emits dense red or yellow vapors.
• fuming sulphuric acid

  nounC1
  /ˌfjuː.mɪŋ sʌlˌfjʊə.rɪk ˈæs.ɪd/A highly concentrated, oily, and intensely corrosive form of sulphuric acid (H₂SO₄) that contains excess sulphur trioxide (SO₃), which can produce toxic white fumes upon exposure to air.
• fumitory

  nounRare
  /ˈfjuːmɪt(ə)ri/A low-growing, greyish-leaved plant of the poppy family, with tubular pink or white flowers, often considered a weed in cultivated ground.
• fumitory family

  nounVery low / Technical
  /ˈfjuːmɪt(ə)ri ˈfæm(ə)li/A botanical name for the family Fumariaceae, which includes plants like fumitory (Fumaria) and bleeding heart (Dicentra), known for their finely divided leaves and irregular flowers.
• fun

  adjectivenounverbverb-ambitransitiveA1
  /fʌn/Enjoyment, amusement, or light-hearted pleasure.
• fun and games

  nounB2
  /ˌfʌn ən ˈɡeɪmz/Activities that are enjoyable, playful, and entertaining.
• fun fair

  nounB1
  /ˈfʌn ˌfeə(r)/A temporary outdoor event featuring amusement rides, sideshows, games of chance, and stalls selling food and souvenirs.
• fun fur

  nounLow-medium
  /ˈfʌn ˌfɜː(r)/An artificial textile designed to mimic animal fur, often in bright or unconventional colors, used for novelty items, toys, or flamboyant fashion.
• fun house

  nounMedium
  /ˈfʌn ˌhaʊs/A carnival or amusement park attraction designed with distorting mirrors, moving floors, and other features to create a disorienting, playful, and often humorous experience.
• fun run

  nounB1
  /ˈfʌn ˌrʌn/A short, non‑competitive running event organised for pleasure and often for charity.
• funabashi

  nounVery Low
  /ˌfuːnəˈbɑːʃi/A proper noun referring to a city located in Chiba Prefecture, Japan, situated on the northeastern shore of Tokyo Bay.
• funafuti

  nounLow
  /ˌfuːnəˈfuːti/The capital atoll and main island of Tuvalu, a Pacific island nation.
• funambulist

  nounC2/Rare
  /fjuːˈnambjʊlɪst/A tightrope walker; someone who performs on a tightrope.
• funchal

  nounLow
  /fʊnˈʃɑːl/The capital city of the Portuguese autonomous region of Madeira, located on the island's southern coast.
• function

  nounverbverb-intransitiveC1
  /ˈfʌŋkʃn/The purpose or role that something is designed to perform.
• function creep

  nounLow
  /ˈfʌŋkʃ(ə)n kriːp/The gradual expansion of a system, process, or technology beyond its original intended purpose, often in small, unplanned increments.
• function key

  nounB2
  /ˈfʌŋk.ʃən ˌkiː/A key on a computer keyboard that performs a specific, predefined operation, typically labeled F1 through F12.

Showing 5601–5620 of 5868 words.