noun, noun, used as a suffix, counter
Core meaning: a vote or ballot in an election or decision. Also used as a counter for votes (e.g., 一票). As a suffix, it can be voiced to びょう or ぴょう in some compounds.
選挙で彼に一票を投じた。
I cast a vote for him in the election.
その法案は賛成多数で可決された。反対票は
The bill passed with a majority in favor. There were only a few opposing votes.
noun, used as a suffix, noun
Used as a suffix or in compounds for physical slips of paper: labels, tickets, tags, or stubs. Not a standalone noun for 'ticket' in modern Japanese (use チケット or 切符 for that).
荷物に宛先を書いた票を貼る。
Attach a label with the destination written on it to the package.
この半券は入場票です。
This stub is your admission ticket.
投票 is the act of voting or a vote cast, while 票 is the individual ballot or vote count.
切符 is a general word for ticket (train, admission, etc.), while 票 as 'ticket' is mostly a suffix in compounds like 入場票.
The kanji 票 originally meant 'a slip of paper' or 'a document', which developed into the modern senses of ballot and label/ticket.