Noun

• S: (n) freak, monster, monstrosity, lusus naturae (a person or animal that is markedly unusual or deformed)
• S: (n) addict, nut, freak, junkie, junky (someone who is so ardently devoted to something that it resembles an addiction) "a golf addict"; "a car nut"; "a bodybuilding freak"; "a news junkie"

Verb

• S: (v) freak out, freak, gross out (lose one's nerve) "When he saw the accident, he freaked out"
• direct hypernym / inherited hypernym / sister term
• S: (v) panic (be overcome by a sudden fear) "The students panicked when told that final exams were less than a week away"
• sentence frame