A =first quality,first grade,first class

　　A.A.R =agianst all risks

　　ABV =above

　　ABT =about

　　A/C,AC=account

　　ACCES =accessory,accessories

　　ACDG =according

　　ACDGLY=accordingly

　　ACEPT,ACPT=accept

　　ACEPTD,ACPTD=accepted

　　ACPTBL=acceptable

　　ACPTC =acceptance

　　ACK =acknowledge,acknowledged,acknowledgement

　　ACOMN,ACCOMDN=accommodation

　　AD =advertisement

　　ADDL,ADDNL=additional

　　ADDN =addition

　　ADDS,ADS=address

　　ADJ =adjust（ment）

　　ADV =advice,advise

　　AFRN =afternoon

　　AGCY =agency

　　AGN =again

　　AGNT =agent

　　AGNST,AGST=against

　　AGR =agree

　　AGRD =agreed

　　AGRMT =agreement

　　AIR =airmail

　　AIRD =airmailed

　　AIRG =airmailing

　　AIRML =airmail

　　AIRFRT=airfreight

　　ALRDY =already

　　AM =America

　　AMAP =as many（much） as possible

　　AMDT =amendment