the word nerd is weird cause there is variations of nerd
nerd 1 : gets good grades in school, usually top ten in class ranking, doesn't have much of a social life/doesn't have social skills, pretty intelligent. they spend most of their time learning other things and whatnot. any race/ethnicity can be this nerd
nerd 2: not even a nerd but more so a Geek. the Geek has a social life and will hang out with only people that have the same interests. these interests include, comic books, star wars, anime, etc. any race/ethnicity can be this nerd
nerd 3: this is the Pharrell/Kanye nerd. these are the nerds who grew up in the suburbs, were socially awkward, some don't have the best grades, and all that but they seem to have a talent or they are artistic. any race/ethnicity can be this nerd.
nerd 4: the people who claim to be a nerd because it's cool apparently. any race/ethnicity can be this nerd