| COM | |
| abbr. comp., MS | Component Object Model |
| abbr. geogr. | Comores |
| abbr. mil. | centre d’opérations maritimes; centre opérationnel de la marine |
| abbr. telecom. | communication |
| Com | |
| abbr. mil. | commandant; commissariat |
| Com. | |
| abbr. mil. | commissaire |
| com. | |
| abbr. food.ind. | commerce |