full general vs General Custer

full general and General Custer both are nouns.

Word	Noun	Adjective	Verb	Adverb
full general	Yes	No	No	No
General Custer	Yes	No	No	No

full general (noun)	General Custer (noun)
a general officer of the highest rank	United States general who was killed along with all his command by the Sioux at the Battle of Little Bighorn (1839-1876)