Synoptic comes from the word synonym which means similar. Synoptic gospels simply means the summary of the first 3 books of the gospels ie Matthew, Mark and Luke. John is not included in the synoptic gospels simply because he has a unique and different way of describing Jesus Christ. John is the only one that describes Jesus as the good shepherd, the true vine, the bread of life, the ressurection and the life, the way the truth and life. The synoptic gospels talk about the life of Jesus from birth up to his ressurection. For those of you that have a chance to read my blog, I will be studying and discovering more with you as we analyse the gospels.