Abstract: An electronic device according to an embodiment includes a processor configured to obtain a first data set including a plurality of first words, based on a first neural network stored in the memory, obtain from the first data set, a second data set including a first sub data set including first parameters corresponding to each of designated second words and a second sub data set including second parameters corresponding to each of the plurality of first words, and output, based on parameters included in the second data set, one or more third words related to the plurality of first words, and the first neural network is trained based on a first weight factor applied to the first parameters corresponding to each of the second words and a second weight factor applied to the second parameter, using a second neural network. Various other embodiments are possible.