When you make a search on Google, what do the blue and black highlighted words mean in the results?

if they are in black does it mean that those words or numbers have not been found?When you make a search on Google, what do the blue and black highlighted words mean in the results?
The blue words are the link to the webpage. Just click on it and it'll take you to the webpage. The bolded blue word(s) in the result(s) is the keyword(s) that you typed into the search engine. The black bolded word(s) in the description/preview of the web page. Usually the more keywords in a result, the better the result will be. Also, usually the results towards the top of the page are the best (and usually the earlier the page is in the search, the better the result is too). Hope this helps :)When you make a search on Google, what do the blue and black highlighted words mean in the results?
blue words are usually the link to the website, the black words i think are part of the contents of that link and are usually the same as or relate to the search you've typed in to google