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English Words Starting With F

5,868 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)

firebase
nounLow-Mid
/ˈfaɪəbeɪs/a backend platform for building web and mobile applications, providing services like real-time databases, authentication, and hosting.
firebird
nounLow
/ˈfaɪəbɜːd/a mythical bird associated with fire in Slavic folklore; also certain real birds with bright plumage
firebird, the
nounC1
/ˈfaɪə.bɜːd/A mythical bird associated with fire, often depicted as glowing or radiant, or a specific type of brightly coloured real bird.
fireboard
nounLow
/ˈfaɪə.bɔːd/A type of plasterboard or building material designed to resist fire.
fireboat
nounLow
/ˈfaɪə.bəʊt/A specialized boat equipped with powerful pumps and nozzles for fighting fires on ships or along waterfronts.
firebomb
nounverbverb-transitiveC1
/ˈfaɪəbɒm/A bomb designed to cause a fire, typically an improvised incendiary device like a Molotov cocktail.
firebox
nounC2
/ˈfaɪəbɒks/The chamber in a steam locomotive or furnace where fuel is burned.
firebrand
nounC1
/ˈfaɪə.brænd/A piece of burning wood or other material, often used as a torch.
firebrat
nounVery Low
/ˈfaɪəbræt/A small, wingless, silver-grey insect that thrives in warm, dry environments and feeds on starchy materials.
firebreak
nounC1
/ˈfaɪə.breɪk/A strip of land cleared of flammable material to prevent the spread of a fire.
firebrick
nounC1/C2 (Low-Frequency Technical Term)
/ˈfaɪəbrɪk/A highly heat-resistant brick made from refractory ceramic material, designed to withstand extremely high temperatures, primarily used to line furnaces, kilns, fireplaces, and fireboxes.
firebug
nounC1
/ˈfaɪəbʌɡ/A person who deliberately and maliciously sets fire to property; an arsonist.
firebush
nounC1
/ˈfaɪəbʊʃ/A shrub or small tree with bright red, orange, or scarlet flowers or berries, resembling fire.
firecracker
adjectivenounB1
/ˈfaɪəˌkræk.ər/A small explosive device wrapped in paper, designed to produce a loud bang when lit. Typically used in celebrations.
firecracker flower
nounLow
/ˈfaɪəˌkrækə ˈflaʊə/A common name for the plant Crossandra infundibuliformis, a tropical flowering shrub known for its long-lasting, brightly colored (often orange, red, or salmon) bracts that resemble small firecrackers or rockets.
firecrest
nounC2
/ˈfaɪə.krest/A small European songbird (Regulus ignicapilla), closely related to the goldcrest, distinguished by a distinctive black and white eye-stripe and a fiery orange or yellow crown stripe.
firedamp
nounVery Low
/ˈfaɪədæmp/A flammable gas, primarily methane, found in coal mines.
firedog
nounLow (C1/C2 vocabulary)
/ˈfaɪə.dɒɡ/A metal stand, typically ornate, used to support logs in a fireplace, often part of a matching set with a fire grate or other fireplace tools.
firedrake
nounLow
/ˈfaɪə.dreɪk/A mythical, fire-breathing dragon.
firefight
nounC1
/ˈfaɪə.faɪt/A short, intense exchange of gunfire between opposing military or paramilitary forces, usually referring to a surprise engagement or battle.

Showing 2121–2140 of 5868 words.