Question

What is a leap year?​

Answer 1

Answer:

a year, occurring once every four years, which has 366 days including 29 February as an intercalary day.

(or)

A leap year is a calendar year containing one additional day added to keep the calendar year synchronized with the astronomical or seasonal year.

that is answer for your question

hope it helps you

Answer 2

A leap year is a calendar year containing one additional day added to keep the calendar year synchronized with the astronomical or seasonal year.