In Cancer Gene Census (CGC) dataset, ([cgc link][1], there is a column named Role in cancer. The values of this attributes are 'fusion', 'oncogene', 'oncogene, fusion', 'oncogene, TSG', 'TSG, fusion', 'oncogene, TSG'.
What does the 'fusion' mean? Does this mean a mixture? Or a gene that sometimes acts as OG and sometimes as TSG?


  [1]: http://cancer.sanger.ac.uk/census
I don't usually point to wikipedia, but this is not a bad description: https://en.wikipedia.org/wiki/Fusion_gene

