1. An apparatus for explicit character filtering of ambiguous key input sequences from a reduced keyboard, said apparatus comprising: a processor; a keyboard comprising a plurality of keys, wherein said keyboard is configured to accept a plurality of types of key inputs including explicit key input and ambiguous key input; wherein responsive to receiving an explicit key input, a single, unambiguous intended character is received; wherein an ambiguous key input indicates an intended character of a plurality of potentially intended characters, but the intended character is not known; a memory coupled to said processor, wherein said memory comprises: an object database storing objects, wherein objects are associated with sequences of key inputs; the processor configured to generate objects when a desired object is not found in said object database, the processor further configured to: receive a first sequence of ambiguous key inputs; subsequent to receiving the first sequence of ambiguous key inputs, receive one or more characters by explicit key input; generate, based on the first sequence of ambiguous key inputs, a first set of search character sequences; wherein each character of each search character sequence of the first set of search character sequences: corresponds to an ambiguous key input in the first sequence of ambiguous key inputs; and is selected from the plurality of potentially intended characters associated with the corresponding ambiguous key input; search said database, based on the first set of search character sequences, for objects to identify a first set of potential desired objects found in said database; receive a selection of a first desired object from the first set of potential desired objects found in said database; subsequent to receiving the one or more characters by explicit key input, receive a second sequence of ambiguous key inputs; generate, based on the second sequence of ambiguous key inputs, a second set of search character sequences; wherein each character of each search character sequence of the second set of search character sequences: corresponds to an ambiguous key input in the second sequence of ambiguous key inputs; and is selected from the plurality of potentially intended characters associated with the corresponding ambiguous key input; search said database, based on the second set of search character sequences, for objects to identify a second set of potential desired objects found in said database; receive a selection of a second desired object from the second set of potential desired objects; wherein said desired object comprises said first desired object and said second desired object.