The word "belltower" is a noun that typically refers to a tall tower or structure in which bells are hung for ringing. There are many synonyms for this word that can be used to add variety to your writing or speech. Some examples of synonyms for "belltower" include campanile, carillon, belfry, steeple, spire, minaret, and cupola. Each of these words has its own specific connotation and history, so choosing the right synonym depends on your intended meaning and tone. For instance, a "campanile" often refers to a belltower in Italy, while a "minaret" usually connotes a tower associated with a mosque.