leap

"Since February usually has 28 days, the intercalary day on February 29th of a leap year makes up for the slight difference between the calendar year and the Earth's actual orbit around the sun. "

"My teacher explained the new math concept, and I understood it perfectly. "

"He will have to traverse the mountain to get to the other side."

"The teacher's smile was a significant of approval for my hard work. "

"My sister is very helpful, especially when it comes to organizing things. "

"The cat was sleeping comfortably on the windowsill. "

"The historical romance novel was a bestseller in the bookstore. "

"The intermediate level of Spanish class is a good fit for students who already know some basic vocabulary. "

"In biology class, we learned that technically, even fruits are vegetables because vegetables are any plant. "

"The year 2024 is a bissextile year, meaning February has 29 days instead of 28. "

"The copulation of the two companies created a stronger business entity. "

"an impressive movie"