"freak" in the noun sense
1. freak, monster, monstrosity, lusus naturae
a person or animal that is markedly unusual or deformed
2. 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"
"freak" in the verb sense
1. freak out, freak, gross out
lose one's nerve
"When he saw the accident, he freaked out"
Source: WordNet® (An amazing lexical database of English)
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