The Collaborative International Dictionary
swinging post
Gatepost \Gate"post`\ (g[=a]t"p[=o]st`), n.
A post to which a gate is hung; -- called also swinging post or hinging post.
A post against which a gate closes; -- called also shutting post.
WordNet
swinging post
n. the gatepost on which the gate is hung [syn: hinging post]