King James Bible Dictionary

A little wing, (Matthew 4:5; Luke 4:9). On the southern side of the temple court was a range of porches or cloisters forming three arcades. At the south-eastern corner the roof of this cloister was some 300 feet above the Kidron valley. The pinnacle, some parapet or wing-like projection, was above this roof, and hence at a great height, probably 350 feet or more above the valley.

Of temple
Matthew 4:5

(of the temple), (Matthew 4:5; Luke 4:9) The Greek word ought to be rendered not a pinnacle, but the pinnacle. The only part of the temple which answered to the modern sense of pinnacle was the golden spikes erected on the roof to prevent birds from settling there. Perhaps the word means the battlement ordered by law to be added to every roof. (According to Alford it was the roof of Herod's royal portico of the temple,"which overhung the ravine of Kedron from a dizzy height"

600 or 700 feet.-ED.)

PIN'NACLE, noun [Latin pinna.]

1. A turret, or part of a building elevated above the main building.

Some metropolis

With glistering spires and pinnacles adorn'd.

2. A high spiring point; summit.

PIN'NACLE, verb transitive To build or furnish with pinnacles.

PIN'NACLED, participle passive Furnished with pinnacles.