The word 全力 is formed by directly combining two meaningful characters: 全 (quán), meaning "whole" or "complete", and 力 (lì), meaning "strength" or "effort". Their union is not grammatical but conceptual, creating a single composite idea where "whole" modifies "strength" to produce the meaning of "all one's strength" or "full effort". It is a straightforward semantic pairing where the first character describes the extent or quality of the second, resulting in a new, unified concept understood as "with all one's might".