Meaning of “slander” - Learner’s Dictionary

slander

noun [ C, U ] us uk /ˈslɑːndər/

the crime of saying bad things about someone that are not true

slander verb [ T ]
slanderous adjective us uk /ˈslɑːndərəs/

saying bad things about someone that are not true

(Definition of “slander” from the Cambridge Learner’s Dictionary © Cambridge University Press)