All 9 Uses

apex
in
The Bourne Supremacy
(Auto-generated)

The dispatcher at the Apex agency on Bonham Strand East was still there and he has cars available but nobody to drive one here.†
Chpt 18 *

apex = highest point
By the way, just in case I ever need to know a rental agency open at this hour, it was the Apex on Bonham Strand East, wasn't it?†
Chpt 18
It is the Apex Car Rental Agency in Bonham Strand East.†
Chpt 18
He was very firm and he is making the proper phone call to the Apex garage.†
Chpt 18
Wenzu sat in the front seat of MI6 Vehicle Two, his patient gaze on the entrance of the Apex agency on Bonham Strand East.†
Chpt 18
'Break away and return here,' ordered Lin, as he watched the garage doors opening across the street at the Apex agency.†
Chpt 18
The driver held his hand on the horn, breaking the line of traffic as he made a U-turn while the major issued instructions to the back-ups, ordering one to stay at the Apex agency, the others to take up the new chase.†
Chpt 18
The professional was at his apex, calm and deliberate.†
Chpt 23
He lifted it up, tore off the shield, and threw it with all his strength towards the A-framed apex above the french doors.†
Chpt 32

Definitions:

(1) (apex)
the highest point or most important level of something
(2) (meaning too rare to warrant focus)
The "highest point" can be physical or metaphorical -- as in the apex of his career.

Much more rarely, "Apex" is used in the travel industry as an acronym for "advance-purchase excursion"; i.e., to reference tickets that are discounted due to advance purchase.