Spec/spek/ Definition 1 of 4Pro Tip 1/3Blueprint Equivalent Think of 'spec' as a blueprint in industries like architecture and manufacturing. She examined the spec to ensure all measurements were correct. Pro Tip 2/3Precision Key 'Spec' implies precision and attention to detail, necessary in construction and production. Ensure the parts are made to spec to avoid malfunctions. Pro Tip 3/3Concise Detail 'Spec' often conveys comprehensive details in a concise, easy-to-understand format. Can you send me the spec for that chair?