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 the speech utterance against the first transcription and the second transcription, for determining a first probability factor for the first transcription, and for determining a second probability factor for 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.