n.
Pronunciation: t ə - ' ra-n ə - ˌ s ī d, t ī -
Function: noun
Etymology: in sense 1, from French, from Latin tyrannicidium, from tyrannus + -i- + -cidium -cide (killing); in sense 2, from French, from Latin tyrannicida, from tyrannus + -i- + -cida -cide (killer)
Date: 1650
1 : the act of killing a tyrant
2 : the killer of a tyrant