n.1.A board, as upon a guidepost having upon it directions or information as to the road.
References in periodicals archive ?
a vile, distempered, mud-colored native brat, making dirt-pies in front of an isolated cabin; and the first thing the men noticed was--was--but they could not make it out; a guideboard perhaps, or a cross, or the modest grave-stone of some ill-fated stranger.
Lane writes straight and solid, like a guideboard, but I find that I put off the "social tendencies" to a future day, which may never come.