Home › Words › H › headboxheadboxheadbox means synonym of headrail.Among words judged in Lexicurio's Arena, headbox ranks #31,333 of 42,817 for Qualifying.EtymologyFrom head + box.nounSynonym of headrail.A device for distributing a suspension of solids in water to a machine at a constant rate, or for retarding the rate of flow, as to a top-feed filter, or for eliminating by overflow some of the finest particles.The topmost square of a USPSA target holding the B and A scoring zones.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.cartonboard 62% match — Synonym of boxboard. vs headbox →bedrail 61% match — A rail at the head, foot, or side of a bed. vs headbox →headblock 60% match — In a sawmill carriage, a cross-block on which the head of the log rests. vs headbox →bedboard 59% match — The headboard or footboard of a bed. vs headbox →headstock 58% match — A headframe. vs headbox →headchair 57% match — Part of a block switch on a railway line that the ends of the moveable rails rest on, and to which the stationary rails are attached. vs headbox →toprail 57% match — An upper rail, such as a guardrail in scaffolding. vs headbox →billheading 57% match — Synonym of billhead. vs headbox →