noun
in the morning; during the morning
Refers to the period from early morning until noon, often used when scheduling or describing events within that time frame.
午前中に会議があります。
There is a meeting in the morning.
午前中はずっと雨だった。
It rained all morning.
朝 is a general word for 'morning', often referring to the early part of the day, while 午前中 specifically covers the time from morning until noon.
Compound of 午前 (gozen, 'morning, a.m.') and 中 (chū, 'during, within').