The word 'doter' is a noun that refers to someone who is excessively fond of and lavishes attention on someone or something. Some common synonyms for 'doter' include admirer, ardent follower, devotee, fan, fanatic, lover, devotee, enthusiast, adorer, worshipper, and aficionado. These words describe individuals who are passionate and devoted to a particular person, activity, or object. Some other synonyms for 'doter' include doting parent or grandparent, smitten admirer or lover, and devoted acolyte or disciple. Whether it is a lover, a hobby, or a child, a doting person shows deep affection towards the subject of their affection.