Pronunciation: (spek), [key]
—n., adj., v., spec'dor speckedor specced, spec'•ingor speck•ingor spec•cing.
1. Usually, specs. specification (def. 2).
3. on spec, made, built, or done with hopes of but no assurance of payment or a sale; without commitment by a client or buyer: ad illustrations done on spec; luxury homes built on spec and sold before completion.
built, done, bought, etc., as a speculation: the construction of spec houses.
to provide specifications for: Their newest truck was spec'd by a computer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.