Am I a nerd?

For years, I have thought of myself as a nerd. I've gotten various replies to saying that I am one, including concurrences, dissension, and people who thought I shouldn't label myself. There are various characteristics that make up being a nerd, some of which I've noticed myself and others that others have said about me.
One of the biggest reasons I say I'm a nerd is because of how smart everyone thinks I am. While I was never anywhere near the top of my class in high school, people have repeatedly said that I'm a smart person. While I disagree with them, it's apparent that popular opinion says that I'm brilliant. Why do they think so? Well, it's several things: my ability to recognize spelling errors almost every time I see them; my ability to use advanced words without even thinking about it, leaving others wondering what the heck I'm talking about; all the random trivia I'm able to spout about pretty much any popular topic aside from sports; and the fact that I've gotten high scores on most standardized tests, including the highest possible score on a writing one in both middle and high school.
Another reason is because of my interests. Most of the time, what I was into was not popular with my peers. (The only exception I remember was when I was into Pokémon like every other kid my age back in 1999.) In high school, most of my friends watched MTV and network prime time shows. However, I spent most of my time praising Disney Channel's sitcoms. I also read some books that I wasn't required to read in high school, and a lot of people my age hate reading, even now, and especially the guys. My interest in sci-fi/fantasy and superhero films/books/etc., how much time I spend in front of a computer (read: on Facebook,) and the fact that I have no interest in going out and partying all night proves my point even further.
Now, despite the fact that I'm a nerd, I would not say that all or even most of my friends are the same way. Most of my friends play or have played sports in some form other than in a video game; they go out and do things with people at least sometimes; they don't spend too much time in front of a computer except for when required; and they don't obsess over anything, much less television shows or celebrities. Some of my friends do have somewhat nerdy tendencies (such as Jake's obsession with the military, Matthew's addiction to video games, Kate's fascination with weather, Bob's love for programming, Robert's craziness for anime, and Emily having read a lot of the Star Wars books); however, I still don't think any of them are anywhere near as nerdy as I am.
Of course, this is up to you to discuss, so I will ask you: Do you think I am a nerd? Why or why not? Do you know any other nerds? If I mentioned you in that list of friends, do you consider yourself a nerd, or no? Why or why not? Let me know the answers!