Can Images do what words do? Are visual Arguments possible?

Visual arguments are definitely possible to persuade one's point. Why? Well, could we say that images have meanings? Then could we say that the meanings from the images may be combined to show an argument? Therefore, can we simply say that visual arguments exist? 

I believe that images can be very persuasive, but not as persuasive as words. In an essay, words have universal meanings--we can look in a dictionary as well to define a word. However, not all pictures or images are perceived the same way by everyone. Consequently, when we do not know what an image is intending to mean, where can we look to find that answer? 

It is certainly practical to say that visual arguments exist. Albeit, most often, words provide a more concrete and clear argument.