Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun twenty-four_hours

1 sense of twenty-four hours

Sense 1
day, twenty-four hours, twenty-four hour period, 24-hour interval, solar day, mean solar day -- (time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day")
       => time unit, unit of time -- (a unit for measuring time periods)