Father Corapi once stated that the Word of God is like the Trinity, in that there are three parts to the Word of God, and just like the Trinity, one part can not exist independent of the other two.
We consider the Word of God to be Sacred Tradition, Sacred Scripture, and the Magisterium. Wherever we see one part, the other two parts are automatically present. This is the fundamental difference (and source of argument) between us and our Protestant bretheren. They consider the Word of God to be Scripture.
While that certainly is true, Scripture is only the partial Word. Jesus is the Word, and Jesus is present in the Sacred Tradition He handed to us through His Church, the Sacred Scriptures (which ironically are a result of Sacred Tradition) and through His Church’s Magisterial Teaching.