3 occurrences in 3 dictionaries
Reference: Beacon
Easton
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 Eze 27:5, the same word is rendered "mast." (See Banner.)
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Morish
Signal pole placed on the top of a hill. Isa 30:17. Israel should be so reduced in prosperity and in number as to become like a solitary 'tree bereft of branches,' margin.