- blade, vane - flat surface that rotates and pushes against air or water
--1 is a kind of rotating mechanism
--1 is a part of
--1 has particulars: fan blade; impeller; paddle; rudder bladepropeller, propellor; helicopter, chopper, whirlybird, eggbeater; windmill, aerogenerator, wind generator; turbine; oar - weathervane, weather vane, vane, wind vane - mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
--2 is a kind of mechanical device
--2 has particulars: weathercock; wind tee - vane - a metal fin attached to the tail of a bomb or missile in order to stabilize or guide it
--3 is a kind of fin
--3 is a part of missile- vane, web - the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
--4 is a kind of blade
--4 is a part of feather, plume, plumage
--4 has parts: barb - vane, web - the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft