Newbie

имя существительное [используется в разговорной речи] чайник, новичок, "нуб" (новый пользователь; приступающий к освоению тонкостей какой-либо технологии, преимущественно связанной с компьютерами и интернетом)

Большой англо-русский словарь

Newbie

(new boy) начинающий пользователь в киберпространстве, новичок Антоним(ы): oldbie

Англо-русский словарь компьютерных терминов

Newbie

noun Usage: often attributive Etymology: irregular from new newcomer; especially a newcomer to cyberspace

Merriam-Webster's Collegiate Dictionary

Newbie

/n[y]oo'bee/ (Sometimes shorted to "noob") Originally from British public-school and military slang variant of "new boy", an inexperienced user. This term surfaced in the newsgroup news:talk.bizarre but is now in wide use. Criteria for being considered a newbie vary wildly; a person can be called a newbie in one group while remaining a respected regular in another. The label "newbie" is sometimes applied as a serious insult to a person who has been around for a long time but who carefully hides all evidence of having a clue. See BIFF.

Free Online Dictionary of Computing