feather; plume; wing; shuttlecock (in badminton)
flapping sound (of wings); fluttering; hum (of insects); whizz (of a flying arrow); whoosh
to let your hair down; to have fun after a period of work or stress
feather decoration; plume
down quilt; feather quilt
feather duster; feather brush
resting wings (i.e. a bird taking a break from flying)