beacon, mast

Concise Bible Dictionary:

Signal pole placed on the top of a hill (Isa. 30:1717One thousand shall flee at the rebuke of one; at the rebuke of five shall ye flee: till ye be left as a beacon upon the top of a mountain, and as an ensign on an hill. (Isaiah 30:17)). Israel should be so reduced in prosperity and in number as to become like a solitary “tree bereft of branches” (margin).

Strong’s Dictionary of Hebrew Words:

Number:
8650 (find all occurrences in KJV Bible)
Transliteration:
toren
Phonic:
to’-ren
Meaning:
probably for 766; a pole (as a mast or flag-staff)
KJV Usage:
beacon, mast