The Collaborative International Dictionary
Spile hole
Spile \Spile\, n. [Cf. LG. spile, dial. G. speil, speiler, D. spijl. [root]170.]
A small plug or wooden pin, used to stop a vent, as in a cask.
A small tube or spout inserted in a tree for conducting sap, as from a sugar maple.
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A large stake driven into the ground as a support for some superstructure; a pile.
Spile hole, a small air hole in a cask; a vent.