As with many Swedish words, förtidsröstning is a compound word – a word made up of two or more words merging to form a new one. You'll see it in the word röstkort, the voting card issued to people who have rösträtt (the right to vote), but you won't see it in the word for a voting booth or polling station – this is a valbås (literally: election booth) or vallokal (election venue).