sort by Rank | Alpha
| Possible Meanings | Rank |
| Certified Unicenter Specialist Administrator | **** |
| Communities United to Strengthen America | *** |
| Calgary United Soccer Association | *** |
| Center for Unconventional Security Affairs | *** |
| Certified Unix System Administrator | *** |
| Colleges and Universities Sports Association | *** |
| Connecticut Uniform Securities Act | *** |
| Centro Universitario Studi Aziendali | *** |
| Canby United Soccer Association | ** |
| cavitational ultrasonic surgical aspiration | ** |
| Cavitron ultrasonic suction aspirator | ** |
| Cavitron ultrasonic surgical aspirator | ** |
| Cavitron Ultrasound Surgical Aspirator | ** |
| Cooper-Ultrasonic surgical aspirator | ** |
| Carleton University Student Association | ** |
| Colchester United Supporters Association | ** |
| Cavitron ultrasonic surgical aspiration system | ** |
| Congregational Union of South Africa | ** |
| Czech University Sports Association | ** |
| Credit Union Services Association | ** |
| Columbia University School of the Arts | ** |
| combined use of ultrasonic surgical aspirator | ** |
| Cisco Unity System Administration | ** |
| dissection , ultrasonic aspirator | ** |
| handpiece of ultrasonic surgical aspirator | ** |
| Concordia University Students Association | ** |
| Cambridge University Student Alliances | ** |
| Certificate in UNIX System Administration | ** |
| Customs Union of Southern Africa | ** |
| Canada United States Association | ** |
| Conway United Soccer Association | ** |
| Chester Upland School of the Arts | ** |
| Chico Urban Streams Alliance | ** |
| Catholic United Services Auxiliary | ** |
| Chinese Undergraduate Student Association | ** |
| Committee on Undergraduate Studies and Advising | ** |
| Council of Unions of SA | ** |
| Credit Union and Savings Association | ** |
| Caribbean University Sports Association | ** |
| Clarkson University Student Association | ** |
| Communication Undergraduate Student Association | ** |
| Curtin University Staff Association | ** |
| Carleton Undergraduate Student Association | ** |
| Central Urban Service Area | * |
| Crichton University Scholarship Agreement | * |
| Cambridge University Surfing Association | * |
| College and University Students Assembly | * |
| Credit Unions and Savings Association | * |
| Council for United States Aid | * |