four-day

UK: ˈfɔː.deɪ | US: ˈfɔr.deɪ

Definition

  1. adj. lasting or spanning four days

Structure
four <number 4>day <24-hour period>
Etymology

The compound "four-day" directly combines the numeral "four" (from Old English fēower, Proto-Germanic fedwōr) with "day" (Old English dæg, Proto-Germanic dagaz). This transparent structure reflects English's Germanic roots in forming time-related compounds by simple juxtaposition. The hyphenated form emerged in Modern English to clarify the adjectival function (e.g., "four-day week").

Examples

  1. The company introduced a four-day workweek to improve employee well-being.

  2. We planned a four-day hiking trip through the national park.

  3. The festival expanded from a three-day to a four-day event this year.

  4. A four-day training session will cover all essential skills.

  5. After the storm, a four-day power outage affected thousands of residents.