beacon

Short definition from Wiktionary

Noun

1. 1
   A signal fire to notify of the approach of an enemy, or to give any notice, commonly of warning.
2. 2
   A signal, buoy, post, or other conspicuous mark erected on an eminence near the shore, or moored in shoal water, as a guide to mariners, particularly to warn vessels of danger.
3. 3
   A high hill or other easily distinguishable object near the shore which can serve as guidance for seafarers.
4. 4
   That which gives notice of danger, hope, etc., or keeps people on the correct path; a source of inspiration.
5. 5
   An electronic device that broadcasts a signal to nearby portable devices, enabling smartphones etc. to perform actions when in physical proximity to the beacon.
6. 6
   Ellipsis of web beacon.

Verb

1. 1
   To act as a beacon.
2. 2
   To give light to, as a beacon; to light up; to illumine.
3. 3
   To furnish with a beacon or beacons.

Proper noun

1. 1
   A town in Western Australia.
2. 2
   A city and town in Iowa, United States.
3. 3
   A city in New York, United States.
4. 4
   A hamlet in Devon, England.
5. 5
   A surname.