Halloween decor typically includes cobwebs and webs, which are both made of thin strands of spider silk. Cobwebs, which have 6 letters, are usually found in corners and other places where spiders can build their webs. Webs, which have 4 letters, are the intricate patterns that spiders spin to catch their prey. Both cobwebs and webs are often used as decorations for Halloween, adding a spooky atmosphere to the holiday.