a.m. abbreviation
or AM or British am
or AM or British am
Learner's definition of A.M.
in the morning —
used with numbers to show the time of day上午,午前(与数字连用) -
She woke up at 6 a.m. and didn't go to bed until midnight.她早上6点起床,直到半夜才睡下。
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The class is held from 11:30 a.m. to/until 2:15 p.m.这堂课从上午11:30开始到下午2:15结束。
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12 a.m. [=midnight, one hour after 11 p.m.]午夜12点
◊ The abbreviation a.m. stands for the Latin phrase ante meridiem, which means “before noon.”*a.m.是拉丁文短语ante meridiem的缩略词,意为before noon。
— compare p.m.