morning · noun C or U /ˈmɔːr.nɪŋ/
morning
A1 the first half of the day, from the time when the sun rises or you wake up until the middle of the day
Dictionary examples:
Friday morning
I got up late this morning.
I work three mornings a week at the bookstore.
I have a dentist appointment tomorrow morning.
I'll see you on Saturday morning.
Learner example:
I wake up at 8 a.m every morning. (Skills for Life (Entry 1); A1; Polish)
(Good) morning
A1 used to say hello to someone in the morning
Dictionary example:
Good morning, Sarah!
in the morning
A1 during the early part of the day
Dictionary example:
I listen to the radio in the morning.
Learner example:
He love[s] to get up early in the morning. (Skills for Life (Entry 1); A1; Urdu)
2/3/4, etc. o'clock in the morning
B1 2/3/4, etc. o'clock at night
Dictionary example:
My car alarm went off at 3 o'clock in the morning.
Learner example:
I came home at 4 o'clock in the morning. (Preliminary English Test; B1; German)
in the morning
B1 tomorrow morning
Dictionary example:
I'll pack in the morning.