Noun. Shortened version of "
tomorrow morning," but its use is also similar to that of tonight. Can also be used in the sense of "this morning," although such use is less
common.
Anytime the day before, from after
noon until midnight (or later, depending on location and preference), you
may say, "What are you doing tomorning?" --What are you doing tomorrow morning?-- or "Hey, can I catch a ride to
work with you tomorning?" --Hey, can I catch a ride to
work with you tomorrow morning?--
During the wee hours of the morning, you can say, "I am going to school tomorning." --I am going to school (later) this morning.-- However, this is not a commonly used form of the word.