noun
A small document that acts as proof of something, often thereby granting the holder some ability.
A citation for a traffic violation.
(usually technical support) A service request, used to track complaints or requests that an issue be handled.
(politics, informal) A list of candidates for an election, or a particular theme to a candidate's manifesto.
(dated) A small note or notice.
(dated) A tradesman's bill or account (hence the phrase on ticket and eventually on tick).
A label affixed to goods to show their price or description.
(dated) A visiting card.
(law enforcement slang) A warrant.
verb
To issue someone a ticket, as for travel or for a violation of a local or traffic law.
To mark with a ticket.