overnight/əuvə'naɪt/

1.adverb [sleep] [ stay+] 
(during the whole night) 一整夜

2.adverb [fig] 
(suddenly) 一下子

3.adjective [+accommodation] 
(for a night) 过夜的

an overnight success
突如其来的成功
overnight stop {or} stay
过一夜