The word 确认 is formed by combining two individual characters, each contributing a core meaning to create a new, unified concept. The first character, 确 (què), carries the fundamental idea of "certainty", "solidity", or "establishing as true". The second character, 认 (rèn), fundamentally means "to recognize", "to acknowledge", or "to identify". Their combination is not merely additive but synergistic; the process of making something certain (确) is achieved through the active act of formally recognizing or acknowledging it (认), resulting in the complete meaning of "to confirm" or "to verify".