If the simple and old tune of Happy Birthday can be copyrighted, why then the regularization of the spelling of words can be both copyrighted and patent. So send your two bits in already before the postal rate increase.
Words and the spelling of them are facts, and facts can't be copyrighted (see Feist v. Rural Tel. Service Co., 1991). Creative organization and layout, plus comments and the specific wording of definition go into a dictionary, which make the work as a whole copyrighted.
Patents don't apply unless you have a specific unique method for creating a dictionary.