The Greek word which is translated Word in the "The Gospel of John" is the word "Logos".
Five hundred years before Christ came into the world, the Greek philosopher Heraclitus used the word to describe what he envisioned as a universal force of reason which governed the universe.
He felt that all things happen according to this Logos (Fr. 50, from Hippolytus, Refutation of all Heresies, IX, 9, 1).
Later, the philosophical school known as the Stoics expanded and popularized this idea in the ancient world.
The apostle John does the same thing in His reference to Jesus as the Logos of God.
Unlike the Greek notion of the Logos as an impersonal ordering force, John declares that the Word became flesh and dwelt among us (John 1:14).
Throughout his gospel he goes on to explain that this One who is the Logos of God was a personal entity who lived and taught among His creation. While the Jews perhaps were closer in their concepts of the Logos, John also clarifies their misconceptions.
The Word of God was not simply a personified manifestation of God, John tells us that the Logos was the creative force of God, which was with God but was God Himself (John 1:1).
"In The Beginning Was the Word" : A Study of the Logos Doctrine