An editing tool is provided for developing word-pronunciation pairs based on a spelled word input. The editing tool includes a transcription generator that receives the spelled word input from the user and generates a list of suggested phonetic transcriptions. The editor displays the list of suggested phonetic transcriptions to the user and provides a mechanism for selecting the desired pronunciation from the list of suggested phonetic transcriptions. The editing tool further includes a speech recognizer to aid the user in selecting the desired pronunciation from the list of suggested phonetic transcriptions based on speech data input that corresponds to the spelled word input, and a syllable editor that enables the user to manipulate a syllabic part of a selected pronunciation. Lastly, the desired pronunciation can be tested at any point through the use of a text-to-speech synthesizer that generates audible speech data for the selected phonetic transcription.