Home › Words › T › treenailtreenail/ˈtɹiːˌneɪl/treenail means A wooden peg or pin used as a fastener.Among words judged in Lexicurio's Arena, treenail ranks #10,388 of 42,747 for Qualifying.treenail is pronounced /ˈtɹiːˌneɪl/.EtymologyInherited from Middle English trenayl; equivalent to tree + nail.nounA wooden peg or pin used as a fastener.e.g.“OPERATION—The wood for the treenail is fixed in G; the balance wheel is then moved....” — 1847, editorial staff, “TREENAIL MACHINE”, in Scientific American, series 1, Volume 3, Issue 10, page 73:Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.nailing 63% match — A mechanical fastening by means of nails. vs treenail →pegging 62% match — The act of fastening with a peg. vs treenail →shoepeg 61% match — A wooden peg formerly used to attach soles to the upper part of shoes. vs treenail →trestletree 58% match — One of two strong bars of timber, fixed horizontally on the opposite sides of the masthead to support the crosstrees and the frame of the top. vs treenail →tintack 58% match — A short nail or tack coated with tin. vs treenail →spikenail 58% match — A large nail or spike. vs treenail →tige 58% match — A steel pin in early rifles. vs treenail →pegged 57% match — Fitted or furnished with one or more pegs. vs treenail →