Synonyms: nightlong, overnight, all-night
Definition: lasting, open, or operating through the whole night
Usage: a nightlong vigil; an all-night drugstore; an overnight trip
Similar words: long
Definition: primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified
Usage: a long life; a long boring speech; a long time; a long friendship; a long game; long ago; an hour long