Definition of "Titular" :
adjective: existing in name only
"The nominal (or titular) head of his party."
adjective: of or associated with or bearing a title signifying nobility
"Titular dignitaries."
adjective: of or pertaining to the title of a work of art
"Performed well in the titular (or title) role."
adjective: of or bearing a title signifying status or function
"Of titular rank."
adjective: of or relating to a legal title to something
"Titulary rights."