Lake St. Clair vs Lake Saint Clair

Lake St. Clair and Lake Saint Clair both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lake St. Clair	Yes	No	No	No
Lake Saint Clair	Yes	No	No	No

As nouns, Lake St. Clair and Lake Saint Clair are synonyms defined as:

Lake St. Clair and Lake Saint Clair: a lake between Ontario and Michigan; connected with Lake Huron and Lake Erie

Lake St. Clair (noun)	Lake Saint Clair (noun)
a lake between Ontario and Michigan; connected with Lake Huron and Lake Erie	a lake between Ontario and Michigan; connected with Lake Huron and Lake Erie