spec | meaning of spec in Longman Dictionary of Contemporary English | LDOCE

From Longman Dictionary of Contemporary Englishspecspec /spek/ noun informal    1 [countable usually plural] a detailed instruction about how a building, car, piece of equipment etc should be made SYN specification  the specs for the company’s new video games console2 → on spec3 → specsExamples from the Corpusspec• I am restoring it and considering upgrading it to 110 spec.• Pre-final spec T9000-based versions will ship in June/July followed by final spec versions in the fourth quarter.• And here's where the question of spec lists raises its head.• They are coming here, essentially, on spec.• You simply landed here on spec?• But Mark McGwire is also working on spec.• Our CD-ROM drive is three times faster than the software specs require. From Longman Business Dictionaryspecspec /spek/ noun [countable] informal1MANUFACTURINGdetailed instructions about how something should be designed or madeSYNspecificationWe have made a few alterations to the design spec.2MARKETINGthe spec of a machine, computer etc is the combination of all its special featuresSYNspecificationThe two cars share very similar specs.3on spec if you do something on spec, you do it without being sure that you will get what you are hoping forI sent in an application on spec, but I still haven’t heard from them about any jobs.Origin spec 1. (1900-2000) specification2. (1800-1900) speculation3. (1800-1900) spectacles