invigorate

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

"The young child's vitality was evident in her energetic play at the park. "

"to intensify a photographic negative"

"The sun imparts warmth."

"It requires great strength to lift heavy objects."

"The morning classes at school begin at 8:00 a.m. "

"We were warmed by the bright sunshine."

"The speaker's strong closing argument heightened the tension in the courtroom. "

"The positive of finishing the project early is a bonus week of vacation. "

"Exercise is invigorating."

"The teacher told us that the next exercise is to write an essay."

"Exercise is invigorating."