Alpha
(Adj.) Having the most power in a group of animals or people; socially dominant
(Noun) Something that is first; the beginning
(Noun) Alpha Wave. An electrical rhythm of the brain with a frequency of approximately 8 to 13 cycles per second that is often associated with a state of wakeful relaxation, meditation, and flow states
(Noun) Astronomy. Used to designate the brightest star in a constellation
Nerd
(Noun) One slavishly devoted to intellectual or academic pursuits
(Noun) A person who is very interested in technical subjects
(Noun) An intelligent but single-minded person obsessed with a hobby or pursuit