The word "满足" is formed through the logical combination of two meaningful characters: "满" (mǎn), which carries the core idea of fullness, completeness, or being filled, and "足" (zú), which fundamentally means foot but is extensively used to convey sufficiency or being enough. By placing these concepts side-by-side, the compound naturally generates the abstract meaning of satisfaction, the state where a desire or need is completely filled to the point of sufficiency. It is a conceptual blend where the imagery of "full" merges with the idea of "adequate" to create the holistic sense of being contentedly satiated.