| A/S/L | Age/Sex/Location |
| A/S/L/P | Age/Sex/Location/Picture |
| AA | Alcoholics Anonymous |
| AAA | Any Advice Appreciated |
| AAMOF | As A Matter Of Fact |
| ADGR | Any Donations Gratefully Received |
| ADN | Any Day Now |
| AFAIAA | As Far As I Am Aware |
| AFAIC | As Far As I'm Concerned |
| AFAICT | As Far As I Can Tell |
| AFAIK | As Far As I Know |
| AFAIR | As Far As I Recall |
| AFAIUI | As Far As I Understand It |
| AFK | Away From Keyboard |
| AGAN | As Good As New |
| AI | As If |
| AIC | Ain't It Cool |
| AISB | As I Said Before |
| AISI | As I See It |
| AIUI | As I Understand It |
| AIW | As It Were |
| AKA | Also Known As |
| ALOIA | A Lot Of It Anyway |
| AMAP | As Many/Much As Possible |
| AMF | Adios, MotherF'r or Adios, My Friend |
| AMIGA | A Merely Insignificant Game Addiction |
| ANAWFOS | And Now A Word From Our Sponsor |
| APAC | All Praise And Credit |
| APITN | A Pain In The Neck |
| ASAP | As Soon As Possible |
| ASCII | American Standard Code for Information Interchange |
| ASWGAFF | Ask Someone Who Gives A Flying Fart! |
| ATB | All The Best |
| ATM | At The Moment |
| ATS | Across The Street |
| ATTN | Attention |
| ATTYO | Anything That Turns You On |
| AWCIGO | And Where Can I Get One? |
| AWHFY | Are We Having Fun Yet? |
| AWOL | Absent WithOut Leave |
| AYT? | Are You There? |
