Boyd’s Bible Dictionary:
(holy city). City of Phrygia, on the Meander near Colossae (Col. 4:13).
Concise Bible Dictionary:
City of Phrygia in Asia Minor, for the saints of which Epaphras had a great zeal, or for whom he labored much (Col. 4:13). Now called Pambuk Kalesi, 37° 58' N, 29° 11' E. It is remarkable for its hot calcareous springs, which have deposited curious incrustations.
Strong’s Dictionary of Greek Words:
Transliteration:
Hierapolis
Meaning:
from 2413 and 4172; holy city; Hierapolis, a place in Asia Minor
Jackson’s Dictionary of Scripture Proper Names:
temple city
Potts’ Bible Proper Names:
A holy city:―a city of Phrygia on the Meander near Colossae, Col. 4:13. {Sancta urbs}