reinforce

"You must do your homework before you can watch television."

"The addition of five more items to the agenda will make the meeting unbearably long."

"I encouraged him during his race."

"The doctor explained that the patient's low complement levels made them more vulnerable to infections. "

"strengthen a muscle"

"The museum is planning a significant augmentation of its dinosaur exhibit with new fossils and interactive displays. "

"My sister is very helpful, especially when it comes to organizing things. "

"Denim has a tendency to fade."

"The villagers lived in unhealthy surroundings."

"The school is advertising a new after-school program for students. "

"He reinforced the handle with a metal rod and a bit of tape."

"His two-fingered gesture emphasized what he had told his boss to do with his job."