parembole is a military camp or guarded quarters, also used of armies assembled for conflict.

The term most often identifies the military quarters to which Paul is brought or which people enter and leave in Acts. Elsewhere it denotes camps or assembled armies in scenes of conflict, sacrifice outside a camp, and the encirclement of the saints’ camp.

1. Military quarters as a destination or location · dominant

   In Acts 21:34 and Acts 22:24, the accusative singular form is the place into which Paul is ordered to be brought; the APB renders the destination "into the barracks." Acts 23:16 places Paul’s nephew entering there, while Acts 23:32 has returning troops go back there, showing a fixed military location.

   Acts 21:34Acts 21:37Acts 22:24Acts 23:10Acts 23:16Acts 23:32
2. Camp or forces in a conflict setting · common

   In Hebrews 11:34, the accusative plural occurs where those made mighty in war put "foreign armies" to flight in the APB. The genitive singular in Hebrews 13:11 and Hebrews 13:13 marks what is outside the camp, and Revelation 20:9 uses the accusative singular for the camp surrounded by hostile forces.

   Hebrews 11:34Hebrews 13:11Hebrews 13:13Revelation 20:9

In the Anselm Project Bible: The APB presents the term as "barracks" throughout the Acts scenes, as "foreign armies" in Hebrews 11:34, and as "camp" in Hebrews 13:11, Hebrews 13:13, and Revelation 20:9. These are verse-level renderings rather than definitions.