21. The method of claim 19 , wherein storing the information comprises storing information characterizing one or more of a historical indicator, a geographic indicator, or a subject matter indicator for each of the one or more texts in which the first term appears.
19. A method implemented by a system of one or more data processing devices, the method comprising: receiving, at the system and from a plurality of remote electronic devices, a plurality of messages characterizing user confirmations of the propriety or impropriety of different definitions for characterizing usages of a first term in different texts; storing information characterizing the definitions and the contexts of the texts in one or more persistent data storage devices, wherein each of particular ones of the definitions is stored in association with information that specifies a manner in which the particular one of the definitions characterizes a usage of the first term in one or more contexts that are characterized according to one or more identified textual indications for each of one or more texts in which the first term appears; analyzing, by the system, the information stored at the one or more persistent data storage devices to determine ranks that represent likelihoods that the different definitions correctly characterize usages of the first term, wherein the analyzing comprises determining, for a portion of the textual content that includes the first term, a context that identifies how the portion of the textual is used within the textual content, wherein the determining is based on at least one identified textual indication that is identified in the portion of the textual content by the one or more data processing devices, accessing, from the one or more persistent data storage devices, the information that specifies the manner in which the particular one of the definitions characterize the usage of the first term in the one or more contexts, comparing the accessed information with the determined context that identifies how the portion of the textual content is used within the textual content of a particular one of the different texts; and outputting the ranks from the system.