suppurate

"They put ointment and a bandage on the sore."

"The boy received a deep wound on his knee during a soccer game. "

"The doctor squeezed the pimple, and a little bit of pus came out. "

"They identified a burst pipe as the cause of the flooding."

"The doctor examined the infected cut and noticed a thick discharge. "

"It looks weaker and weaker, the more I think about it."

"I began playing the piano at the age of five.   Now that everyone is here, we should begin the presentation."

"Penny was wearing a miniskirt, so she skinned her exposed knees when she fell."

"The guard blew his whistle to indicate imminent departure."

"The form of the new school building is modern and striking. "

"The infection spread quickly through the classroom after one student got sick. "

"The discussion generated an uproar."