The invention provides an electronic dictionary, a learning word determination method, and a recording medium. First operation information (input search or skip search), second operation information (word book login, voice playback, example sentence/usual sentence display, etc.), and output status information (display time, scroll, etc.) of word information corresponding to the second operation, which are displayed in association with a series of searches for each word searched in accordance with user operation, are added to the search history of each word and stored in search history storagearea(22e). On the basis of first and second operation information and output status information added to the search history of each word, and a word necessity weighting table (22g) divided for each learning type, overlapping values corresponding to the first and second operation information and the output status information are set so as to be divided for each learning type (semantic learning/grammar learning/pronunciation learning). Necessary degrees of each word divided according to learning types are calculated, and learning divided according to learning types is performed by selecting words of which the necessary degrees are equal to or greater than a predetermined degree.
Electronic dictionary, learning word determination method, and recording medium