| the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft | a grounder that bounces high in the air |
| mechanical device attached to an elevated structure; rotates freely to show the direction of the wind | a butcher's knife having a large square blade |
| flat surface that rotates and pushes against air or water | an aircraft without wings that obtains its lift from the rotation of overhead blades |
| a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it | informal terms for a human `tooth' |