Hide certain folders

Hello,

Is there a way to hide the /portfolio/ page so that if someone types https://www.websitename.com/protfolio .. It will result in a “no page found”?

Also is there a way to not let those portfolio items from being found in a search?

I am using the plugin call “Dave’s WordPress Live Search” for my website searching and the theme is movite.

https://www.magpress.com/wordpress-themes/movite.html

Thank you!