1. A computer-implemented method for configuring a speech recognition system to recognize a new word, the method comprising: identifying a first speech recognition model; determining a first word, wherein the first speech recognition model is not configured to recognize the first word; determining first characteristics corresponding to how the first word is used; determining second characteristics corresponding to how a second word is used; determining that the first characteristics are similar to the second characteristics; determining a variation of the second word, wherein the variation of the second word is a combination of a root of the second word and a first affix; determining that the first speech recognition model is configured to recognize both the second word and the variation of the second word; determining, based at least in part on determining that the first characteristics are similar to the second characteristics and based at least in part on determining that the first speech recognition model is configured to recognize both the second word and the variation of the second word, a variation of the first word, wherein the variation of the first word is a combination of a root of the first word and the first affix; and training a second speech recognition model to recognize the first word and the variation of the first word.