CAPITONYMS

A capitonym is a word that changes its meaning, and sometimes its pronunciation, when it is spelled with a capital letter - usually because the capital-letter form is a proper name.

The most famous capitonyms are job/Job and polish/Polish - which both change their pronunciation as well as their meaning when capitalized. 

Many names are capitonyms, having a distinct meaning when not capitalized - with no relation to the capitalized name. Some examples:

Rob       August*

Rod       Lent

Chad     Hamlet

Frank     Mark

Wade     Bill

Will       Carol

Jimmy   Nice*

May       Rich

June       Sue

March    Mandarin

China     Turkey

Rose      Harry

 

*Pronunciation changes