In common usage, a collection is any group of items that has one or more properties in common. For example, paintings from the same artist, or coins from Germany before 1900, see collecting and collectible.
... of 18 living with them, 58.8% are married couples living together, 12.8% have a female householder with no husband present, and 24.0% are non-families. 19.0% of a ...