signpost

lemma צִיוּן missing dagesh, corrected to צִיּוּן; from the same as צִיָּה in the sense of conspicuousness (compare נָצַח); a monumental or guiding pillar; sign, title, waymark.

from the same root as תָּמָר; an erection, i.e. pillar (probably for a guide-board); high heap.