political donation vs political contribution

political donation and political contribution both are nouns.

Word	Noun	Adjective	Verb	Adverb
political donation	Yes	No	No	No
political contribution	Yes	No	No	No

As nouns, political donation and political contribution are synonyms defined as:

political donation and political contribution: a contribution made to a politician or a political campaign or a political party

political donation (noun)	political contribution (noun)
a contribution made to a politician or a political campaign or a political party	a contribution made to a politician or a political campaign or a political party