morning-n; 4 Senses

Sense Number 1: before noon

Commentary: MORNING[+event] morning, morn, morning time - the time period between dawn and noon

Examples:
Morning will be from 6:45 - 12:00.
I spend the morning running errands.
She slept all morning.
George got up at 11:30 in the morning.

Mappings:
WordNet 2.0 Sense Numbers: 1

Sense Number 2: daybreak

Commentary: MORNING[+event] dawn, dawning, aurora, first light, break of day, dayspring, sunrise, sunup, cockcrow - the first light of day

Examples:
Morning will be at 5:47.
We got up before morning.
They talked until morning.

Mappings:
WordNet 2.0 Sense Numbers: 3

Sense Number 3: beginning

Commentary: MORNING[+event] dawn - the earliest period (of something other than a day)

Examples:
The morning of civilization.
The morning of the world.

Mappings:
WordNet 2.0 Sense Numbers: 4

Sense Number 4: good morning

Commentary: morning - a conventional expression of greeting or farewell

Examples:
Good morning.
Sally said "Morning" to everyone she passed in the street.

Mappings:
WordNet 2.0 Sense Numbers: 2