retraining

/R IY0 T R EY1 N IH0 NG/
verb
  1. 1

    To train again; especially, to train or study in a new subject or job

noun
  1. 1

    New or different training, or training in a new field

Source: https://en.wiktionary.org/wiki/retrain, https://en.wiktionary.org/wiki/retraining