suffrage vs right to vote

suffrage and right to vote both are nouns.

Word	Noun	Adjective	Verb	Adverb
suffrage	Yes	No	No	No
right to vote	Yes	No	No	No

As nouns, suffrage and right to vote are synonyms defined as:

suffrage and right to vote: a legal right guaranteed by the 15th amendment to the US Constitution; guaranteed to women by the 19th amendment

Other synonyms of suffrage include vote.

suffrage (noun)	right to vote (noun)
a legal right guaranteed by the 15th amendment to the US Constitution; guaranteed to women by the 19th amendment	a legal right guaranteed by the 15th amendment to the US Constitution; guaranteed to women by the 19th amendment