I. ˈspek noun
Etymology: by alteration
Date: 1926
1. : specification — usually used in plural; also : a single quantity (as a dimension or a measure of performance) describing a product especially as part of a specification
2. : speculation
built the house on spec
II. transitive verb
( specced or spec'd ˈspekt ; spec·cing )
Date: 1965
: to write specifications for
III. abbreviation
1. special; specialist
2. specifically