If someone inputs a word in text1, I need text2 to output a new word for every letter entered in text 1.

So If someone enters:
"Hi" in text1,

I need text2 to output:
"ManHam"

So that "H"=Man, and "i"=Ham, and so on...
But I also need "H" to be a different word than "h".

All I really need is the code and I will fill in the word that each letter means.

Thanks if you can help.
-System