I am a newbie. So I want to know that what is gig.and how can make a gig?
First off: Welcome to Fiverr! Be sure to read the TOS: https://www.fiverr.com/terms_of_service. A gig is where you offer your service. Here is a link where you can better understand what a gig is: https://support.fiverr.com/hc/en-us/articles/201500856-Creating-a-Gig
Hope this helps! Let us know if you have any other questions.