lightened

"My sister found a small apartment near the university for her first year of college. "

"My knowledge of history helped me understand the current political situation better. "

"to intensify a photographic negative"

"The situation has improved considerably."

"From the classroom window, the entire landscape of the valley unfolded before us. "

"The teacher patiently explained the math problem, and the students were able to understand the steps involved. "

"After years of studying philosophy, she became regarded as an illuminate, offering profound insights into complex moral issues during our ethics discussions. "

"The explanation was long and drawn-out."

"Although we did not see the lightning, we did hear the thunder."

"The sun enlightens the Earth."

"The complicated instructions on the new software difficult me from completing the project on time. "

"The desk lamp is illuminating my textbook so I can study better. "