The term PART OF H.R.H. is composed of three crossword solutions: ROYAL (5 letters), HER (3 letters), and HIS (3 letters). ROYAL refers to a person or thing associated with royalty, such as a monarch or a ROYAL family. HER is a possessive pronoun used to refer to a female person or animal. HIS is a possessive pronoun used to refer to a male person or animal. Together, these three words form the acronym H.R.H., which stands for His/Her ROYAL Highness, a title given to members of a ROYAL family.