Also see definition of "Waymark" in Word Study
Waymark
WAYMARK [isbe]
WAYMARK - wa'-mark (tsyun): In Jer 31:21, "Set thee up waymarks," explained by the parallel, "Make thee guide-posts" (the King James Version "Make thee high heaps"). A sign or guiding mark on the highway.
Also see definition of "Waymark" in Word Study
