This is the 14211th most frequent Russian word.
освещают
"Освещают" means "they illuminate" or "they light up."
The verb 'освещают' describes the action of providing light to the room.
Лампочки освещают комнату в доме.
The light bulbs illuminate the room in the house.
The verb 'освещают' is used figuratively here, meaning 'to cover' or 'to address'.
Телепередачи освещают вопросы культуры и искусства.
Television programs cover topics of culture and art.
Here, 'освещают' metaphorically means 'to elucidate' or 'clarify' important matters.