The word “comprehensive” is an adjective that means complete, thorough, and including all or nearly all elements of a specific subject. However, its exact meaning changes depending on the context in which it is used. Language and Definition
General Meaning: Something that is broad in scope and leaves nothing important out. For example, a comprehensive list includes every necessary item.
Vs. Comprehensible: People often confuse these two terms. “Comprehensive” means complete, while “comprehensible” means easy to understand.
In Marketing: In advertising and design, a “comprehensive layout” (or “comp”) is a detailed placeholder layout shown to clients before the final product is created. COMPREHENSIVE | English meaning – Cambridge Dictionary