How do I Correct the Pronunciation of my Word in my Pathfinder?
The Speech Dictionary
Add words to the Speech Dictionary to teach the Pathfinder how to pronounce them correctly. The Pathfinder's speech correctly pronounces most words that you use, but it has trouble with proper nouns like the names of cities and people's names. When you add a word to the dictionary you are teaching the Pathfinder to pronounce it correctly.
You can review all the words that you have put in the dictionary. This can help you decide if you have words that you no longer need in the dictionary.
If you find words that you no longer need, you can erase them from the dictionary.
Add Words to the Speech Dictionary
When you add a word to the Dictionary, first spell it correctly, then spell it the way you want it pronounced. For example, names of foods from other countries are usually mispronounced in English speaking devices. "Fajita" is a good name to practice with.
To Add a Word to the Dictionary:
1. Remove the keyguard and overlay. Open the Toolbox.
2. Open the SPEECH Menu 
3. Select More Items then activate the Speech Dictionary option.
4. Activate Add a Word.
5. Spell the word you want to add. Spell it correctly. In this case you would spell, "Fajita".
6. When you have finished spelling the word correctly, activate OK.
7. Now spell the word the way you want it to be pronounced. This means typing the word the way it sounds. You may want to try out different spellings until the Pathfinder pronounces the word the way you want. Activate one of the Speak keys to hear the word pronounced. You will probably end up with a word that looks something like, "fah hee tuh."
8. When you are satisfied with the pronunciation, activate OK.
9. You can continue to add words, delete words or review words. If you are finished with the Dictionary, activate OK.
Note: Some words can be pronounced two ways. For example, "record" can be pronounced reCORD and RECord. Words with alternate pronunciations should not be added to the Dictionary unless you always want them pronounced in one way only.