Harrison vs President Harrison

Harrison and President Harrison both are nouns.

Word	Noun	Adjective	Verb	Adverb
Harrison	Yes	No	No	No
President Harrison	Yes	No	No	No

As nouns, Harrison and President Harrison are synonyms defined as:

Harrison and President Harrison: 9th President of the United States; caught pneumonia during his inauguration and died shortly after (1773-1841)

Other synonyms of Harrison include President William Henry Harrison, William Henry Harrison.

As nouns, Harrison and President Harrison are synonyms defined as:

Harrison and President Harrison: 23rd President of the United States (1833-1901)

Other synonyms of Harrison include Benjamin Harrison, President Benjamin Harrison.

Harrison (noun)	President Harrison (noun)
9th President of the United States; caught pneumonia during his inauguration and died shortly after (1773-1841)	9th President of the United States; caught pneumonia during his inauguration and died shortly after (1773-1841)
23rd President of the United States (1833-1901)	23rd President of the United States (1833-1901)
English rock star; lead guitarist of the Beatles (1943-2001)
English actor on stage and in films (1908-1990)