Home › Words › S › sidepostsidepostsidepost means A vertical supporting post beside a door, gate, etc.Among words judged in Lexicurio's Arena, sidepost ranks #16,022 of 42,762 for Qualifying.EtymologyFrom side + post.nounA vertical supporting post beside a door, gate, etc.e.g.“They shall take of the blood, and strike it on the two side posts.” — 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Exodus 12:7:Definitions & examples from Wiktionary (CC BY-SA 3.0).