verb · used to express a wish for someone or that a certain event occurs

愿你一路平安。

verb · to be ready or inclined to do something

你愿不愿意跟我走？

noun, verb · a solemn promise or a religious pledge

他在神像前许了一个愿。

verb · that which one wishes for; expectation or desire

这并不是我所愿。

noun, verb · a hope, desire, or aspiration

这一毕生之愿能否达成，全看明天的结果。