Definitions from Wiktionary (Irwin)

▸ noun:  A Scottish or Irish surname originating as a patronymic.
▸ noun:  A male given name transferred from the surname.
▸ noun:  A number of places in the United States:
▸ noun:  An unincorporated community in Merced County, California.
▸ noun:  A minor city in Bonneville County, Idaho.
▸ noun:  A village in Kankakee County, Illinois.
▸ noun:  A minor city in Shelby County, Iowa.
▸ noun:  An unincorporated community in Cherry County, Nebraska.
▸ noun:  An unincorporated community in Union Township, Union County, Ohio.
▸ noun:  A borough in Westmoreland County, Pennsylvania.
▸ noun:  A township in Venango County, Pennsylvania.
▸ noun:  A census-designated place in Lancaster County, South Carolina.
▸ noun:  A local government area, the Shire of Irwin, in the Mid West region, Western Australia.

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