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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)

flapjack
nounB1
/ˈflæpdʒæk/A sweet baked or pan-cooked food made from oats, butter, and sugar or syrup.
flapper
nounLow
/ˈflæp.ər/A fashionable young woman of the 1920s known for her energetic freedom, bobbed hair, short skirts, and unconventional behavior.
flaps
nounB2
/flæps/Thin, flat pieces of material attached at one edge that can move freely, often used to cover an opening or to control airflow.
flare
nounverbverb-intransitive+1B1
/fleə(r)/A sudden bright burst of light or fire, often signalling danger or used for illumination.
flare path
nounC2 (Very low frequency, technical/domain-specific)
/ˈfleə pɑːθ/A line of lights (or other markers) on the ground, especially at an airfield, to guide aircraft during take-off, landing, or movement in darkness or poor visibility.
flare star
nounVery Rare / Technical
/ˈfleə ˌstɑː/A variable star that undergoes sudden, dramatic increases in brightness (flares) for minutes to hours.
flare-up
nounverbB2
/ˈfleər ʌp/A sudden, intense, and often short-lived outbreak or worsening of something negative, such as a disease, conflict, or fire.
flareback
nounLow (C2 level vocabulary, specialized)
/ˈfleəbæk/An unexpected adverse or reverse reaction, consequence, or effect that rebounds onto the originator, often stronger than anticipated.
flares
plural-nounB1
/fleəz/Narrow trousers that widen significantly below the knee. Also, bright bursts of light or fire.
flareup
nounMedium (Common in news, medical, and conflict-related contexts)
/ˈflɛər ʌp/A sudden outbreak or intensification of something, typically something bad, like violence, disease, conflict, or emotion.
flash
adjectivenounverb+2C1
/flæʃ/To produce a sudden, brief, and intense burst of light.
flash burn
nounLow (Technical/Medical/Specialized)
/ˈflaʃ ˌbɜːn/A rapid, instantaneous burn caused by intense, brief exposure to heat or light radiation (e.g., from an explosion, arc welding, or nuclear flash).
flash card
nounB2
/ˈflæʃ ˌkɑːd/A small card with information (such as a word, fact, or question) printed on it, used for learning and memorization, especially as part of a deck.
flash drive
nounHigh
/ˈflæʃ ˌdraɪv/A small, portable data storage device that uses flash memory and connects to a computer via a USB port.
flash drought
nounLow (Technical/Specialist)
/ˌflæʃ ˈdraʊt/A rapid-onset drought characterized by a sudden and severe lack of precipitation, leading to quick drying of soils and vegetation over a period of weeks rather than months or seasons.
flash eliminator
nounLow
/ˈflæʃ ɪˈlɪm.ɪ.neɪ.tə/A device or attachment that reduces or prevents the visible flash from a firearm's muzzle when fired.
flash fiction
nounC1
/ˌflæʃ ˈfɪk.ʃən/A very short work of fiction, typically under 1,000 words.
flash flood
nounB2-C1
/ˌflæʃ ˈflʌd/A sudden, rapid flooding of low-lying areas, typically caused by heavy rainfall over a short period.
flash gun
nounC1
/ˈflæʃ ɡʌn/A handheld device that produces a brief, intense burst of artificial light, used to illuminate a scene for photography.
flash lamp
nounC1
/ˈflæʃ ˌlæmp/A portable, battery-powered electric lamp that produces a brief, intense beam of light, typically used for signaling or photography.

Showing 2641–2660 of 5868 words.