v. i. [ Freq. of swing. ]
v. t.
n. A wooden instrument like a large knife, about two feet long, with one thin edge, used for beating and cleaning flax; a scutcher; -- called also
n. A swingletree. De Quincey. [ 1913 Webster ]
n. (Zool.) The thrasher, or fox shark. See Thrasher. [ 1913 Webster ]
n. [ So named in allusion to its swinging. See Swingle, v. i., and cf. Swingtree. ] A whiffletree, or whippletree. See Singletree. [ 1913 Webster ]