the leading units moving at the head of an army
any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts)
a camper equipped with living quarters
a truck with an enclosed cargo space
(Great Britain) a closed railroad car that carries baggage or freight
mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
flat surface that rotates and pushes against air or water
a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it
