DOOR/WINDOW ETC › If something closes, it moves so that it is not open, and if you close something, you make it move so that it is not open: Jane closed the window. Lie down and close your eyes. Suddenly the door closed.
PUBLIC PLACE › If a shop, restaurant, public place, etc closes, people cannot go in it: The supermarket closes at 8 p.m.
ORGANIZATION (also close down) › If a business or organization closes, or if someone or something closes it, it stops operating: Many factories have closed in the last ten years.
END › to end, or to end something: She closed the meeting with a short speech.