sort by Rank | Alpha
| Possible Meanings | Rank |
| A Physical Therapy Assistant | **** |
| A Public Transit Agency | **** |
| Accreditation in Physical Therapy | **** |
| Australasian Philatelic Traders Association | *** |
| American Public Transport Association | *** |
| American Potato Trade Alliance | *** |
| And the Pilots Association | *** |
| Automotive Products Trade Act | *** |
| Automotive Products Trade Agreement | *** |
| Arizona Physical Therapy Association | *** |
| A Part Time Affiliation | *** |
| Asia Pacific Trade Agreement | *** |
| A Physical Therapist According | *** |
| Alabama Parent Teacher Association | *** |
| Australian Philatelic Traders Association | *** |
| Access for Physical Therapists | *** |
| American Physical Therapist Association | ** |
| American Physical Therapy Assocation | ** |
| Alliance of Public Transportation Advocates | ** |
| Alternate Performance Task Assessment | ** |
| All Pakistan Textile Association | ** |
| Arts and Physical Therapy | ** |
| Association Physical Therapy Association | ** |
| Appointee to the American | ** |
| American Passenger Transit Association | ** |
| Association of Professional Tattoo Artists | ** |
| American Physical Therapy Associations | ** |
| Applied Petroleum Technology Academy | ** |
| American Physical Therapists Association | ** |
| Asia Pacific Theological Association | ** |
| Asociacion Personal Técnico Aeronautico | ** |
| American Paddle Tennis Association | ** |
| America Physical Therapy Association | ** |
| Alberta Piano Teachers Association | ** |
| Alexandria Passenger Transport Authority | ** |
| American Public Transit Administration | ** |
| Asalah Pioneers Technology Academy | ** |
| American Public Transportation Administration | ** |
| Alliance of Philippine Travel Agencies | ** |
| A Passage to Argentina | ** |
| Advanced Power Technology Alliance | ** |
| Advanced Packaging Technology of America | ** |
| Alligator Point Taxpayers Association | ** |
| Americal Physical Therapy Association | ** |
| American Public Transportation Agency | ** |
| Applicable to Physical Therapists | ** |
| American Public Tranportation Association | ** |
| Agricultural Pesticides Technical Advisory | ** |
| Alaska Parent Teacher Association | ** |
| Association for the Promotion of Travel to Africa | ** |
| Am Physical Therapy Association | * |
| American Passenger Transport Association | * |
| Australian Professional Technical Analysts | * |
| Alabama Police Trainers Association | * |
| American Public Transportation Associations | * |
| And Public Transportation Association | * |
| Access Piqua Television Association | * |
| An Automated Policy Translation Architecture | * |
| And Public Transportation American | * |
| Association of Philippine Travel Agencies | * |
| Australian Pilot Training Academy | * |
| Aurora Publications That Addres | * |