growls

"He is a student of life."

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

"The violinist was a master of her instrument."

"I received a notification from my bank about the suspicious activity on my credit card. "

"The factory produced 1000 cars last week. "

"The distant thunder grumbles."

"an aggressive policy, war, person, nation"

"I could hear the thunder rumbling in the distance."

"He threatened me with a knife."

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

"My mother expressed her displeasure with my poor grades. "

"My frustration grew as my teacher kept pointing out my mistakes in front of the class. "