› the first half of the day, from the time when the sun rises or you wake up until the middle of the day: Friday morning tomorrow morning I got up late this morning.
in the morning › during the early part of the day: I listen to the radio in the morning. › tomorrow morning: I'll pack my bags in the morning.
3/4/, etc o'clock in the morning › 3/4, etc o'clock in the night: My car alarm went off at 3 o'clock in the morning.
(Good) morning. › used to say hello to someone in the morning