1. a detailed description of design criteria for a piece of work
2. the act of identifying something precisely or of stating a precise requirement

Examples

• The architect provided detailed specifications for the new building.
• Please check the technical specifications before purchasing the computer.
• The contract includes specifications for materials and labor.
• The specification of exact requirements took several hours.
• All products must meet our quality specifications.
• The job specification clearly outlined the required skills.
• Engineers reviewed the design specifications carefully.