leapyear (**Noun**: Refers to a year that has an extra day (February 29) added to keep the calendar year synchronized with the astronomical or seasonal year.)
1
A year with an extra day in February.
2
Occurs every four years typically.
3
Used to align calendar and seasons.
4
Helps correct the Earth's orbital discrepancy.
5
Involves 366 days instead of 365 days.
leapyear (**Adjective**: Describes something related to or characteristic of a leap year.)
1
**Leap Year Calculation**: Pertaining to the method of determining leap years.
2
**Leap Year Events**: Relating to occurrences specific to leap years.
3
**Leap Day Traditions**: Associated with customs on February 29th.
4
**Leap Year Birthdays**: Referring to individuals born on February 29th.
5
**Leap Year Adjustments**: Concerning modifications in calendars due to extra day.