3. A method comprising: monitoring, by use of a processor, first communications at a digital processing system; determining usage frequencies of a plurality of words in one or more contexts, the one or more contexts comprising a target audience, a subject, and a location and wherein a combination of the one or more contexts is independently associated with a sub-dictionary of a plurality of sub-dictionaries; identifying a first word in response to a usage frequency for the first word in a first context combination of the one or more contexts exceeding a use threshold; and adding the first word to a first sub-dictionary of the plurality of sub-dictionaries with a greatest number context elements matching the first context combination.
7. The method of claim 3 , wherein the first communications comprise one or more of email, text messages, telephone conversations, video conversations, and viewed documents.