AAR vs in any case

AAR

• At any rate. 

• against all risks. 

• Association of American Railroads 

• Axis2 ARchive file (extension .aar) 

• All-American Rejects 

• Air America Radio 

• American Academy of Religion 

• after-action report; after-action review. 

• Aircraft accident report. 

in any case

• Whatever is the case.