lustrum

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

"The governor of our state announced new education funding for schools. "

"It took him only twenty minutes to perform the task."

"The water filter is purifying the tap water, making it safe to drink. "

"The increase in homework assignments this week was significant. "

"The library offered an extension on the due date for the overdue books. "

"The purification process for the drinking water at the school ensures everyone has clean, safe water to drink. "

"The school's student council is a company of dedicated students who organize events. "

"The museum guide conducted the group through the ancient artifacts exhibit. "

"The population of New Jersey will not stand for this!"

"The graduation was full of ceremonial, honoring the students' achievements with speeches and awards. "

"He completed the assignment on time."