nerd vs dweeb

nerd and dweeb both are nouns.

Word	Noun	Adjective	Verb	Adverb
nerd	Yes	No	No	No
dweeb	Yes	No	No	No

As nouns, nerd and dweeb are synonyms defined as:

nerd and dweeb: an insignificant student who is ridiculed as being affected or boringly studious

Other synonyms of nerd include grind, swot, wonk.

nerd (noun)	dweeb (noun)
an insignificant student who is ridiculed as being affected or boringly studious	an insignificant student who is ridiculed as being affected or boringly studious
an intelligent but single-minded expert in a particular technical field or profession