1. A method, comprising the steps of: accepting the entry of a key input sequence by a user in a wireless communication device having a reduced keyboard and a display, wherein said reduced keyboard comprises character keys, navigational keys, and at least one selection key, wherein at least one character key corresponds to a plurality of characters; presenting a graphical user interface to a user comprising at least three discrete fields including each of: a text entry field; a character ambiguity field; and a word choice list field; simultaneously displaying, during all aspects of text entry, at least one user-selected word construct in said text entry field, candidate characters in said character ambiguity field, and candidate word constructs in said word choice list field, said simultaneously displaying further comprising: displaying candidate characters in said character ambiguity field in response to pressing of one or more keys by said user, such that entry of the at least one key with more than one character results in an ambiguous key entry, wherein said character ambiguity field displays more than one potential disambiguation of each said ambiguous key entry in said key input sequence; displaying, in the word choice list field, a plurality of candidate word constructs matching at least one word-level disambiguation of said key input sequence, wherein said candidate word construct comprises at least one candidate character; emphasizing candidate characters that builds the most likely candidate word construct in said character ambiguity field, wherein said most likely word construct is the most frequently used word construct; interpreting a pause of a given length after said display of said more than one potential disambiguation of the most recent ambiguous key entry in said key input sequence as an indication of said user's intention to enter a character explicitly at the current position in said sequence; displaying, after said pause, an interactive explicit candidate selection menu within said character ambiguity field, said explicit candidate selection menu containing all of the potential disambiguations of said most recent ambiguous key entry and a selection indicator associated with one of said potential disambiguations; receiving a selection of an explicit candidate via said interactive explicit candidate selection menu; truncating said plurality of candidate word constructs based on an explicit character selection at said position in said sequence; accepting navigational instructions by said user pressing at least one navigational key, wherein said navigational instructions moves said selection indicator to a different potential disambiguation in said explicit candidate selection menu; accepting a selection instruction by said user pressing said at least one selection key, wherein said selection instruction indicates the explicit command to input the potential disambiguation associated with said selection indicator at that time, said selected potential disambiguation taking the form of an explicitly entered character in a particular position with a word construct; receiving instructions from said user indicating selection of one word construct from among the plurality of candidate word constructs having said explicitly entered character in a particular position, wherein all of said candidate characters remain visible to said user in said character ambiguity field until said user indication, thereby enabling said user to view alternative disambiguations of said key input sequence; and displaying said selected word construct in said text entry field.