Analogous to synonym, typonyms are words that sound and mean the same but are spelled differently due to typographical error.
by whirlwind June 6, 2005
A word that would be the same as another word if spelled without typographical error. This word is becoming increasingly relevant with the widespread usage of instant messaging services and rushed emails. When reading messages written in a hurry, one is alert for all words as well as their typographical counterparts.
by Andrew Tam June 2, 2005