When a company publishes a book or magazine, it prints copies of it, which are sent to shops to be sold.

When the people in charge of a newspaper or magazine publish a piece of writing or a photograph, they print it in their newspaper or magazine.

If someone publishes a book or an article that they have written, they arrange to have it published.

If you publish information or an opinion, you make it known to the public by having it printed in a newspaper, magazine, or official document.