It means to right to vote in political elections. More often associated with the woman's movement to win voting rights
suffrage
The term Suffragist refers to a group of people who rallied for rights. The word is derived from the suffrage.
Suffrage
the right of voting : FRANCHISE; also : the exercise of such right
Electorate(suffrage)
right to vote for women
Women's rights
"Suffrage" is another term for voting (it's a take on a latin word). Direct suffrage would be a direct vote from the represented people to elect their leader. Indirect suffrage would be those leaders electing or appointing other positions, rather than the entire people voting for minor governmental positions.
The term 'electoral' refers to elections. The number of electoral states for example would be a term used. Electoral voting refers to people voting for the candidates in an election.
Universal suffrage (also universal adult suffrage, general suffrage or common suffrage) consists of the extension of the right to vote to adult citizens (or subjects) as a whole, though it may also mean extending said right to minors (Demeny voting) and non-citizens. Although suffrage has two necessary components, the right to vote and opportunities to vote, the term universal suffrage is associated only with the right to vote and ignores the other aspect, the frequency that an incumbent government consults the electorate. Where universal suffrage exists, the right to vote is not restricted by race, sex, belief, sexual orientation, gender identity, wealth, or social status. Historically, universal suffrage often in fact refers to universal adult male suffrage.
unalienable rights
This term means literally that everybody can vote. Practically it means all adult citizens who are not barred from voting by past crimes can vote provided they are properly registered to vote.