Browse words
42,000 words to explore
F
Sort:A–Z
fluorescence
The emission of light by a substance.
fluorescent
Brightly glowing under ultraviolet light.
fluoride
Chemical that helps prevent tooth decay.
fluorine
A pale yellow gas, highly reactive element.
flurry
A sudden burst of activity or movement.
flush
edges are aligned evenly along a margin
flush out
to remove or clear out something
fluster
To confuse or agitate someone.
flute
a musical instrument that produces sound by blowing
flutter
to move lightly and quickly.
flutter in the dovecote
to create confusion or chaos
flutter the dovecote
Create confusion or excitement among people.
flux
Continuous change or movement.
fly
a winged insect
fly blind
act without guidance or clear information.
fly by
Move quickly past something in the air.
fly by the seat of one's pants
To act without a plan or preparation.
fly in the face of
to contradict or oppose something
fly in the ointment
a small problem in an otherwise good situation
fly low
To avoid drawing attention.
fly off
to leave quickly in flight
fly off at a tangent
Suddenly change direction or topic.
fly off the handle
Become suddenly very angry.
fly off the shelves
Sell quickly and in large quantities.