Common
| ISDN
| API
| common | |
| abbr. slang | common sense |
| mil. abbr. | com; comm; comn |
| ISDN | |
| abbr. | I See Dollars Now; I Still Don't No; It Still Does Nothing; Innovations Subsribers Don't Need; Integrated Services Data Network |
| abbr. drug.name | Isosorbide dinitrate |
| abbr. electr.eng. | integrated service digital network |
| abbr. IT | Integrated Services Digital Network |
| API | |
| abbr. | Animal Protection Institute |
| abbr. dentist. | API according to Lange |
| abbr. ed. scient. | Academic Performance Index |
| abbr. med. | Association Des Pharmaciens De L'Industrie |
| abbr. mil. | Application Programming Interface |
| abbr. pharm. | active pharmaceutical ingredient |
| abbr. phys. | artificial periodic inhomogeneity |
| abbr. plast. | American Petroleum Institute |
| abbr. scient. | Air Pollution Index |
| abbr. UN AIDS. | AIDS Programme Index |
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| common sense | |||
| com; comm; comn | |||
| |||
c'mon (misconception of the words "come on," it should be "c'mon"  urbandictionary.com Shabe) | |||
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Common : 23 phrases in 7 subjects |
| Abbreviation | 13 |
| Aviation | 2 |
| Education | 1 |
| Information technology | 2 |
| Medical | 1 |
| Military | 3 |
| Telecommunications | 1 |