As I knew, "아짐" means "morning". Am I wrong?
아짐 is nothing. 아침 is morning.
It's an abbreviation, like brekkie (or is that brekky, breakie, or breaky?) is of breakfast, of "morning meal" aka 아침밥 or some say 아침식사.
It sound like the portuguese version of "achu" lol
Isn't breakfast 아침밥 (morning meal)? 아침 is just morning
아침 means both morning and breakfast. Likewise, 저녁 means both evening and dinner.
And 아침밥 means breakfast too