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/nil/ 1. New Implementation of Lisp. A language intended to be the successor of MacLisp. A large Lisp, implemented mostly in VAX assembly language. A forerunner of Common LISP.

["NIL: A Perspective", Jon L. White, MACSYMA Users' Conf Proc, 1979].

2. Network Implementation Language. Strom & Yemini, TJWRC, IBM. Implementation of complex networking protocols in a modular fashion.

["NIL: An Integrated Language and System for Distributed Programming", R. Strom et al, SIGPLAN Notices 18(6):73-82 (June 1983)].

3. Empty list or False. In Lisp, the empty list (or "nil list") is used to represent the Boolean value False. This is possible because Lisp is not typed. True is represented by the special atom "t".

4. Spoken in reply to a question, particularly one asked using the "-P" convention it means "No". Most hackers assume this derives simply from LISP, but NIL meaning "no" was well-established among radio hams decades before LISP existed. The historical connection between early hackerdom and the ham radio world was strong enough that this may have been an influence.
References in periodicals archive ?
And after spending much of 2017 in hibernation in preparation for a busy period ahead, Nils will commence 2018 with his first live performances since 2015, and will embark on the beginning of a long worldwide tour entitled All Melody.
We are delighted to have Nils at the helm of our company's flagship property in the capital city, especially during a time when the Fairmont brand grows from strength to strength in the United Arab Emirates," said Fairmont Hotels & Resorts regional vice president - UAE, Henning A.
Screenplay, Mitchell; Future Folk band and characters created by Nils D'Aulaire, Jay Klaitz.
Auto Business News-September 2, 2011--Volkswagen AG to launch new NILS concept car at 2011 Frankfurt Motor Show(C)1994-2011 ENPublishing - http://www.
MUSIC Nils Lofgren Acoustic Duo, above, Philharmonic Hall, 0151 709 3789.
THE WONDERFUL ADVENTURES OF NILS: Nils Holgersson may not be a familiar name to most people in the U.
Damascus, (SANA) -- Norwegian trumpet player Nils Petter Molvaer performed music from his new album Hamada at the al-Assad House for Culture and Arts in Damascus.
Tonight there's a show by Nils Petter Molvaer, the celebrated Norwegian trumpet player, composer and producer, promoted by Birmingham Jazz.
NORTH East basketball has waved goodbye to one of its favourite adopted sons - but hoops are high that Nils Steuber will be back in Newcastle by the summer.
WHEN Maria Andrews fell ill on a dream holiday to the Dominican Republic, hospital staff advised fiance Nils Friis to return to his hotel because she was recovering so well.
Chrome was the only browser up for grabs that Nils didn't break.
God Lager whose names translates as 'good' in Swedish--is produced by the Nils Oscar micro-brewery.