Privacy of site

I’m new to squarespace and wondering if there is a way to share a page or section of my squarespace website with certain people that will not give them access to the rest of the site? I want to create a listing of an item for sale without reveling or giving access to My whole site/blog.  Currently if I share a link to a page my whole site is reveled and becomes available. I don’t want to have to use passwords.  would like to easily be able to block out the rest of my site and only give certain access via a specific link.  Possible?

The way that you're describing this it wouldn't be possible. Even with password protecting the page you share, you're "revealing" your URL and there's nothing stopping someone visiting the rest of your website. The only way to have a product page that has no connection to your website would be to have it on a different website. 

Why are you trying to hide your whole website from people accessing an item listing?

Thanks for your response, sorry I didn't see it sooner.

I'm in the process of combining URL's/websites into one place and want to use my Squarespace site for many different things.  Here's an example: There are times when I might want to share listings such as boats or cars without opening up my whole website to a buyer.  This leads me to an interesting observation, thanks for that, Maybe I'm envisioning a website that is more personal than necessary, past my comfort zone.    My website is not intended to be commercial, I've been thinking of it as a universal place to put things,  like images, videos, writings etc. but I'm concluding that I need separate, independent places to put different things.  I think Google docs will be useful, I'm finding that I can create and link to the docs when I want to share things but not put my website out there with it.  Thanks for your question, it helped.