1. A speech recognition method comprising the steps of: (a) receiving a nametag utterance via a microphone associated with an automatic speech recognition system; (b) decoding the nametag utterance to recognize constituent subwords of the nametag utterance using at least one processor associated with the automatic speech recognition system; (c) determining the number of subwords in the nametag utterance; (d) associating the nametag utterance with one or more of a plurality of different nametag clusters based on the number of subwords in the nametag utterance; (e) storing an associated nametag in memory, as representing the nametag utterance, among a plurality of stored nametags; and (f) playing stored nametags back by cluster.