hinted

He's hinted at the possibility of moving to Canada.

他暗示过有可能移居加拿大。

Did she give you any hints about where she was going?

她有没有向你暗示过她要去哪里呢？

This recipe book is full of handy (= useful) hints.

这本烹饪书中有很多有用的建议。

I detected a hint of doubt in his voice.

我察觉到他的语气中有些许怀疑。