Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is. Meta keywords are distinguished from regular keywords because they appear "behind the scenes" in the source code of your page, rather than on the live, visible page itself.

There's no getting around the fact that meta keywords aren't the big players they once were in SEO So Why Should I Use Meta Keywords?

However, it remains unclear if keywords were removed from Google's algorithm entirely:)). Search engines ranking algorithms are kept top secret in order to deter people from gaming the system, which explains why none have explicitly announced how thoroughly they examine meta keywords. In fact, there's evidence that Bing and other search engines still continue to rely on them.

No matter that "rumors" say meta keywords were devalued by Google.
But they can nonetheless still play a maybe small but helpful part in communicating your message and attracting searchers to your site.

In the competitive world of search engine marketing, every little bit counts:).