A state nick name is a short phrase that describes something about that state. It may be an official symbol for the state. Nick names may be found on the state license plates, either official or an unofficial nick name, usually related to advertising.
the state nick name for illinois is the "Praire State"
Pennsylvania is known as the Keystone State.
the "first state"
The Hawkeye State
The Magnolia State.
the volunteer state
the volunteer state
Missouri
Nevada
Connecticut
the aloha state
"The Lone Star State."