What is Anything ?
Anything is pron 1. it does not matter what You can eat anything you want. Our dog will bite anything that moves. 2. (in questions, negatives) something Did you do anything interesting at the weekend? Did you hear anything make a noise during the night? Has anything happened to their plans for a long holiday? Do you want anything more to drink? he didn’t eat anything he ate nothing 3. a particular thing hardly anything almost nothing Hardly anything was saved from the wreck. 4. like anything very strongly it’s raining like anything it’s pouring down with rain anything else any other thing Do you want anything else to drink? Is there anything else you would like to know about? She must have a doll which closes its eyes anything else won’t do.
source: Easier English, Student Dictionary Upper Intermediate Level