| AM | |
| 1. adj. (timekeeping) (initialism of Anno Mundi) (Latin for in the year of the world) | |
| 2. Initialism. (Sometimes lower case) From (etyl, la, en) ante meridiem, meaning "before noon (12:00)". | |
| 3. Initialism. (communication, broadcasting) (initialism of amplitude modulation) | |
| 4. Initialism. (education) (initialism of Artium Magister) | |
| 5. Initialism. (education) (initialism of Master of Arts) | |
| 6. Initialism. (manufacturing) (initialism of additive manufacturing) | |
| 7. Initialism. (politics, UK) (initialism of Assembly Member) (A title similar to MP, placed after the name of a Member of the Welsh National Assembly.) | |
| 8. Initialism. (property law) (initialism of automated mapping) (Used in conjunction with Facilities Managements abbreviations (AM/FM).) | |
| 9. Initialism. Member of the Order of Australia. | |
| 10. v. first-person singular present indicative of be | |
| 11. adv. alternative spelling of a.m. | |
