LG enV VX-9900

For the front screen and keypad when you're typing up a text,does the phone have a custom dictionary? I mean if you use ABC mode and type in a custom word or abreviated terminlogy, then hit T9 then phone will remember it when you go and type it in again but I've had situations when in a week or so, the phone doesn't recognize the custom word or phrase that you're trying to enter. i hope you know what I'm talking about here. hahah. I mean on our FDU Rave wireless school phone, the Sprint Samsung M500 you can actually view all the words in your custom dictionary. Thanks for anyone help! 🙂 😁 😎