Thank you all for your help in answering my question

Hi, Karen, good question and the community pulls through again. I love this place. All the best.
Ann

Great . Here we have the answer.

A backlink is a link to your site from another site.

They can also increase traffic to your website.

a back link is when you link 2 websites or articles together---I have a main website where I promote my coaching business and link to all the articles I've written

HI, the following link might help.
https://business.yell.com/knowledge/what-are-backlinks-and-how-can-they-improve-seo/

a backlink from an authority site can increase your ranking. A backlink from a site that doesn't get much traffic can cause your ranking to be downgraded.

They are inbound links from other sites to your site - and they are not as important as they once were

Are Backlinks Good for Rankings? Nope.