verb · to prick, stab, sting, or thrust with a sharp object

护士用针头刺入手臂输液。

noun, verb · a sharp-pointed part of a plant or animal, or a splinter

这朵玫瑰花上有很多刺。

verb · (onom.) whoosh

只听刺的一声，利箭破空而过。

verb · to murder or kill someone, typically a prominent person, by surprise attack

他怀揣利刃潜入大营，准备去刺那敌方主帅。