Boyd’s Bible Dictionary:
(strong). A city, or district, in Syria, dependent on Damascus (Isa. 36:19; 37:13; Jer. 49:23; 2 Kings 18:34; 19:13).
Concise Bible Dictionary:
Fortified city near Hamath (2 Kings 18:34; 2 Kings 19:13; Isa. 10:9; Isa. 36:19; Isa. 37:13; Jer. 49:22).
Strong’s Dictionary of Hebrew Words:
Meaning:
from 7502; spread out; Arpad, a place in Syria
Jackson’s Dictionary of Scripture Proper Names:
I shall be spread out (or supported)
Potts’ Bible Proper Names:
Sure bed, or covering; fortified city; firmly laid:―[ARPAD], Isa. 36:19. {Stratum firmum}