Beacon

a pole (Heb. to'ren) used as a standard or ensign set on the tops of mountains as a call to the people to assemble themselves for some great national purpose (Isa. 30:17). In Isa. 33:23 and Ezek. 27:5, the same word is rendered "mast." (See Banner .)

Source: Easton’s Bible Dictionary (M.G. Easton, 1897, public domain).