That which gives notice of danger, or keeps people on the correct path.
An electronic device that broadcasts a signal to nearby portable devices, enabling smartphones etc. to perform actions when in physical proximity to the beacon.
A signal fire to notify of the approach of an enemy, or to give any notice, commonly of warning.
A high hill or other easily distinguishable object near the shore which can serve as guidance for seafarers.
A signal or conspicuous mark erected on an eminence near the shore, or moored in shoal water, as a guide to mariners.
A post or buoy placed over a shoal or bank to warn vessels of danger; also a signal mark on land. (FM 55-501)
To furnish with a beacon or beacons.
To act as a beacon.
To give light to, as a beacon; to light up; to illumine.
An object or a kind of indication which may be used as evidence.
Information which may lead one to a certain point or conclusion.
Insight or understanding ("to have a clue [about]" or "to have clue". See have a clue, clue stick)
To provide with a clue.
To provide someone with information which he or she lacks (often used with "in" or "up").