n. A guiding or warning signal; anything fixed or set up as a token; especially, a signal-fire, either in a cresset and placed on a pole, or lighted on a tower or an eminence.n. A tower or hill formerly used for such purposes.n. A lighthouse or other object placed conspicuously on a coast, or over a rock or shoal at sea, to give notice of danger, or for the guidance of vessels.n. A painted staff about 9 feet long, carrying a small square flag at the top, used in camps to indicate an angle of the quarters assigned to a regiment or company.n. In England, formerly, a division of a wapentake; probably a district throughout which a beacon could be seen, or which was bound to furnish one.To illumine or light up as a beacon.To afford light or aid to; lead; guide as a beacon.To furnish or mark with beacons: as, to beacon a coast or a boundary: sometimes with off.To use as a beacon; make a beacon of.To serve or shine as a beacon.