Homonym: A.M. (AnteMeridiem)
A.M. stands for "ante meridiem," a Latin phrase meaning "before noon." It is used to designate the time from midnight (12:00 AM) to just before noon (11:59 AM) in the 12-hour clock system. This system helps distinguish between morning and afternoon hours, with "PM" indicating the time after noon.
In everyday use, A.M. is commonly seen on clocks, schedules, and digital devices to clarify the time of day. For example, a meeting scheduled for 9:00 A.M. occurs in the morning, while 9:00 P.M. would be in the evening. Understanding A.M. is essential for effective time management and communication.