Common
| User
| common | |
| abbr. slang | common sense |
| mil. abbr. | com; comm; comn |
| US | |
| abbr. auto. | under size; under steer; underselling |
| abbr. insur. | life information service |
| abbr. mil., air.def. | User segment |
| abbr. OHS | unsafe situation |
| USERS | |
| abbr. space | Unmanned Space Experiment Recovery System |
| User | |
| comp. abbr. | U |
| Users | |
| comp. abbr. | U |
| |||
| common sense | |||
| com; comm; comn | |||
| |||
c'mon (misconception of the words "come on," it should be "c'mon"  urbandictionary.com Shabe) | |||
|
Common : 26 phrases in 7 subjects |
| Abbreviation | 15 |
| Aviation | 2 |
| Education | 1 |
| Information technology | 2 |
| Medical | 1 |
| Military | 4 |
| Telecommunications | 1 |