Fanatico is a Spanish word that refers to someone who is extremely enthusiastic or devoted to a particular thing, idea, or activity. It could be used in several contexts, including sports, politics, religion, and entertainment. Some useful synonyms for fanatico include zealot, enthusiast, devotee, aficionado, fan, and admirer. These words suggest a high degree of passion, interest, and dedication towards a particular subject. Other synonyms for fanatico could include fanatic, maniac, or extremist, but these terms often carry a negative connotation and may imply an unhealthy level of obsession or irrational behavior. Overall, the word fanatico and its synonyms emphasize the intense and passionate commitment of an individual towards a particular interest.