Sherlock Holmes

The definition of synecdoche is in which a part is made to represent the whole or vice versa. After viewing the pilot episode "A study in pink" from the BBC Sherlock Holmes to me, I think that the cabbie is a part of Moriarty. He is representing only a piece of Moriarty, perhaps the murderous side. I would assume that as the series progresses and Sherlock solves more crimes we would see additional parts of Moriarty's persona come out through the various actors committing the crimes on behalf of Moriarty. 

One of the most obvious symbolism in this episode was how Dr Watson started off using a cane and limp only to lose the limp and the cane later in the episode. According to the episode Dr Watson has seen combat in Afghanistan and was wounded, but he did not say what kind of wound. I would say that it was more of an emotional wound rather than a physical and the cane and limp represented his psychological turmoil over the war. However, as the episode progressed and his friendship with Sherlock progressed the emotional wound started to heal until there was no need for the cane. This would further be substantiated by Sherlock finally finding out that it was a left shoulder wound and not a leg.

This episode also uses many codes to the viewers. I noticed that throughout the episode whenever Sherlock analyzed what he is seeing a word would pop up a split second before Sherlock would say what it was he analyzed. This was a code to the viewer to have them feel that they are in the position of figuring out the clues and are active in solving or analyzing the case.