father vs don

father and don both are nouns.

Word	Noun	Adjective	Verb	Adverb
father	Yes	No	Yes	No
don	Yes	No	Yes	No

As nouns, father and don are synonyms defined as:

father (noun)	don (noun)
a male parent (also used as a term of address to your father)	teacher at a university or college (especially at Cambridge or Oxford)
the founder of a family	the head of an organized crime family
a person who holds an important or distinguished position in some organization
a person who founds or establishes some institution
the head of an organized crime family

father (verb)	don (verb)
make (offspring) by reproduction	put clothing on one's body