10. A method comprising: operating at least one processor programmed to perform ascertaining that an utterance to be associated with a user-defined speech command is acoustically similar to an existing speech command; automatically determining at least one substitute for the utterance; and presenting the substitute as an alternative to the utterance.
10. A method comprising: operating at least one processor programmed to perform ascertaining that an utterance to be associated with a user-defined speech command is acoustically similar to an existing speech command; automatically determining at least one substitute for the utterance; and presenting the substitute as an alternative to the utterance. 14. The method of claim 10 , wherein the at least one substitute comprises a plurality of substitutes, which are each presented in the presenting step.