gnashing

"You need to control your anger."

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The bus is approaching the stop, so get ready to board. "

"The new carpet in the living room is a beautiful, deep red. "

"gnashing your teeth"

"The coffee grind was too coarse, resulting in weak coffee. "

"The seamstress used a sturdy between to create a precise, even stitch on the thick upholstery fabric. "

"The thief stole Mrs. Garcia's purse from her locker at school. "

"Call the police!"

"The student's action of studying diligently improved her grades. "

"The new rules about homework have teeth; parents are actually following them now. "

"I had to stop running when I started getting pains in my feet."