[{"Bold_text": "noun", "List Items": ["a single-minded person obsessed with a hobby or pursuit or with a particular topic:My 13-year-old son is a computer nerd.I joined a book club and discovered another Jane Austen nerd.", "a person considered to be socially awkward, boring, unstylish, etc."]}, {"Bold_text": "verb (used without object)", "List Items": ["to spend inordinate amounts of time, attention, energy, enthusiasm, etc., on an activity or topic of special interest to oneself; geek:I enjoy samurai movies, nerding about samurai movies, and the occasional slice of cake.Don't cross the street while you're nerding on your phone—you're likely to get hit!"]}, {"Bold_text": "verb phrase", "List Items": ["to engage with excessive enthusiasm in a hobby or in discussion about a topic of special interest to oneself:Back in the day, I nerded out hardcore over baseball cards.We sat there for half an hour while she nerded out on the metaphysical poets.", "to alter or be altered in a way that shows excessive enthusiasm for a special interest:He appears in that film nerded up as a philosophy genius.I'm going to nerd up my office with these five Charlie Chaplin posters.Wow, this simple conversation about cheese sure nerded up fast!"]}]