What does Embed mean?

Embed means - instead of just having a link on your website, you could have the whole contest page displayed there by using the Embed code. <embed> tag is used to place/(typically)embed/fix the multimedia content on a web page. It's just like when you put a YouTube video on your site. To do this you would need to edit your webpage (or add one specifically for the contest) and paste the embed code  on that page. It will then display the first page of the contest there. To get information about how to embed the contest in your webpage, publish it to your microsite by clicking on Publish beside Microsite in Publish section, then click on the image