frivolity

"The child's disruptive behavior in class was a concern for the teacher. "

"The mayor's office held a special ceremony to honor the city's firefighters. "

"My daughter's teacher is very kind and helpful. "

"It was a surprise to see the captain, who had always seemed so serious, laugh so heartily."

"During the serious meeting, Sarah's frivolous comments about the latest TikTok trend distracted everyone. "

"Wait a moment, while I lock the front door."

"Although the birds fly north for the summer, they return here in winter."

"Go easy on him: he is but a child."

"Everyone in the class needs to bring their textbook to the first lecture. "

"to allow a servant his liberty;  to allow a free passage;  to allow one day for rest"

"Before dinner, I finished my homework. "

"The crowd was distracted by a helicopter hovering over the stadium when the only goal of the game was scored."