|A distinct part that can be specified separately in a group of things that could be enumerated on a list.|
He noticed an item in the New York Times.
She had several items on her shopping list.
The main point on the agenda was taken up first.
|A small part that can be considered separately from the whole.|
It was perfect in all details.
|An isolated fact that is considered separately from the whole.|
Several of the details are similar.
A point of information.