1. An electronic device comprising: a memory for storing a word, a first transcription of the word, and a second transcription of the word; a microphone for capturing a speech utterance; a speech recognition engine, coupled to the microphone and the memory, for evaluating through a predetermined number of times of speech utterances against the first transcription and the second transcription, for determining a first probability factor for the first transcription based on an accumulated acoustic score for the first transcription and a total accumulated score of the first transcription and the second transcription, and for determining a second probability factor for the second transcription based on an accumulated acoustic score for the second transcription and the total accumulated score of the first transcription and the second transcription; and a processor, coupled to the speech recognition engine, for inactivating the first transcription if the first probability factor is below a threshold.