overnight/ˌəʊvə'naɪt $ ˌoʊvər-/

ad.

➊ for or during the night

➋ suddenly or quickly

adv.

➊ 在整个夜里：We want to stay here overnight. 我们想在这里过夜。

➋ 突然，一下子；一夜之间：She became known worldwide overnight. 她一夜之间就家喻户晓了。

构词over + night