Slate (magazine) definition

(1) (formerly) a writing tablet made of slate

(2) A list of candidates nominated by a political party to run for election to public offices

(3) A fine-grained metamorphic rock that can be split into thin layers

(4) Thin layers of rock used for roofing

(5) Designate or schedule

"He slated his talk for 9 AM"

"She was slated to be his successor"

(6) Cover with slate

"Slate the roof"

(7) Enter on a list or slate for an election

"He was slated for borough president"