Slate (elections)
A slate is a group of candidates that run in multi-seat or multi-position elections on a common platform.
The common platform may be because the candidates are all members of a political party, have the same or similar policies, or some other reason.
Elections that commonly have slates
United States electoral college
The United States presidential elections use an electoral college to determine the winner and the electors are chosen by popular vote in each state. Voters choose a slate of electors who support one of the candidates, although this may not be obvious to the voter at the time.
United States legislative elections
In states whose state legislatures are elected from multi-member districts, it is common for groups of candidates to form slates in primary and general elections. Elections to the Maryland General Assembly are a prime example, with most districts electing one member of the Maryland Senate and three members of the Maryland House of Delegates. Candidates for senator and delegate (usually incumbents) often join together prior to the primary election, registering their slates as separate campaign committees to enable them to raise funds separately. They are commonly called "Leadership Teams".