Hide Section From Search Engine Or Indexing

Is it possible to hide a section from indexing and search engines?
I know you can hide a page by keeping it as a draft, but what about a section?
I have a section that is just for particular clients i send a link to, but I want to avoid password protecting if possible. The section has a number of pages some of which have prices

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Side note: If you draft the pages under the section they don't list in the section

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You should create a robots.txt file and put it in the root of your site

https://www.google.com/search?q=robots.txt

User-agent: *
Disallow: /folder-name/

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