1. An insignificant student who is ridiculed as being affected or boringly studious
   "The popular kids often mocked the nerd for always having his nose in a book";
   - swot [Brit, informal], grind [N. Amer, informal], wonk [informal], dweeb [N. Amer, informal], nurd [informal, rare]
    
2. An intelligent but single-minded expert in a particular technical field or profession
   "The computer nerd spent hours debugging the code";
   - nurd [informal, rare]
    
3. Someone considered boring because of their obsessive hobby or narrow solitary interests
   "His friends teased him for being a nerd when it came to vintage cars";
   - trainspotter [Brit, informal], anorak [Brit, informal], spod [Brit, informal]

Derived forms: nerds

Type of: assimilator, expert, learner, scholar, student

Encyclopedia: Nerd