In one embodiment, a method for determining concept attributes for a concept term includes receiving a concept term and determining one or more word senses for the concept term. A word sense is selected from the one or more word senses, and, based on the selected word sense, one or more conceptually similar terms for the concept term is determined. The method also includes determining that at least one of the one or more conceptually similar terms is a concept attribute for the concept term and generating a mapping to associate the concept attribute with the concept term. The mapping is stored in an onomasticon.