noun
plural slates
[noncount] :a type of hard rock that splits easily into thin layers
[count] :a small sheet of slate in a wooden frame that was used in schools in the past for writing on with chalk - see also blank slate
[count] :a piece of slate that is used with others to cover a roof or wall
[count] US :a list of people who are trying to win an election
clean slate
wipe the slate clean
verb
slates; slated; slating
[+ obj] chiefly US :to arrange or plan for something to happen, someone to be chosen, etc. - usually used as (be) slated
verb
slates; slated; slating
[+ obj] Brit informal :to criticize (someone or something) very harshly