In certain fairy tales, a fictional benevolent woman with magical powers who uses them to help the cause of the protagonist. / (by extension) Any generous benefactor.

(Britain) A small cake baked in a small paper cup; a cupcake.

insubstantial / impractical

Alternative form of away with the fairies

(idiomatic) Not all there; slightly crazy. / (idiomatic) Synonym of lost in thought; distracted or daydreaming. / (idiomatic) fast asleep

A figure of modern myth said to give children a small amount of money (or sometimes a present) in exchange for a milk tooth when it falls out of a child's mouth.

A magical powder that would give the power of flight to whoever it was sprinkled on. / (by extension) Any apparently magical ingredient or effect. / (slang) The drug phencyclidine.

plural of fairy-wren

Any of certain small, insectivorous Australian birds, incorporating fourteen members of the family Maluridae.

(Australia, New Zealand) A snack made of buttered bread sprinkled with hundreds and thousands.