Have you ever noticed that words which have nearly the same meaning often take on different connotations in actual usage?
Take middle and center, for example. Someone between the buyer and the seller who takes the price up for the consumer is the “middle man.” Someone getting between two people that causes tension is always in the middle of the problem.
On the other hand, a person can be the center of attention, or the center of one’s world, etc.
Center and middle are basically the same in meaning, but in most cases very different in their usage.
There are a number of other words like this. But word usage is a passion of mine as evidenced by my popular phrase and expression origin book, Most Comprehensive Origins of Cliches, Proverbs and Figurative Expressions selling every day on Amazon. Buyers say that the paperback version is really great! Get it today on Amazon or other online bookseller or better still, at the St. Clair Publications website, http://stclairpublications.com where PayPal payments are one of the safest ways to pay ever!