Synonyms for Vane (same or very similar meaning)
WordNet sense 1 (mechanical device attached to an elevated structure; rotates freely to show the direction of the wind):
weathervane, wind vane
WordNet sense 2 (flat surface that rotates and pushes against air or water):
blade
WordNet sense 3 (the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft):
web
From the ODE community, based on WordNet
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