Peer review or refereed both refer to the same process that a journal publisher uses to select scholarly articles before publication. Those articles are then called "peer reviewed".
How it works: The article is sent out to independent reviewers who critique the article. These reviewers are experts or well-experienced scholars/practitioners in the field. They analyze the paper's research quality, its logical cohesiveness, the accuracy of its theoretical applications. Essentially, these peer reviewers help to make the article the best it can be, to ensure that the research is top notch.
Want to find a peer reviewed article?
In search tools, you will find a limiter or option to check, which will pull out of your search results those articles that have gone through the process.
Verify that you do indeed have a peer reviewed article by running a search in Ulrich's. Use the title of the journal in which your article was published then...
if you see the referee jersey to the left of your journal title... it is!