overnight >> əʊvəˈnʌɪt
Definition: [adverb] for the duration of a night.
Example: they refused to stay overnight
Definition: [adjective] done, happening, or for use overnight.
Example: an overnight stay
Definition: [verb] stay for the night in a particular place.
Example: I overnighted at the Beverly Wilshire
Definition: [noun] a stop or stay lasting one night.
Example: overnights can be arranged in Kathmandu