This definition appears very rarely
See other meanings of AA
We have 149 other definitions for AA
in our Acronym Attic
Samples in periodicals archive:
With multiple gun systems concentrating on the same avenue of approach, "volume of fires" soon became the solution to the aerial problem.
This may represent the most promising avenue of approach for further improvement.
As a result of a diplomatic failure to complete the boundary between the Pakistani and Indian sections of Kashmir, the Siachen Glacier region of the Karakorum Range remained "a source of dispute between India and Pakistan" for over 30 years due to the region's geostrategic importance as an avenue of approach into the contested Kashmir and into Central Asia, according to Pradeep Barua in The State at War in South Asia.
His chief avenue of approach to this lode was the rich vein of African American music, particularly jazz, which contributed many metaphors and coinages to Ellison's critical lexicon.
This avenue of approach, based on the goals the players have created for themselves, enables us to avoid the rough waters that can be created by less-than-enthusiastic practices or games.
The most frequently used route, most likely avenue of approach for coalition forces is where the insurgent is most likely to attack.
If there were no pre-planned targets, the BFIST positioned to observe the enemy's most likely avenue of approach (AA).
The river itself is also an avenue of approach for the enemy, particularly from its tar side.