The word 营救 is formed by combining two independent characters, each with its own meaning, to create a new, unified concept. The first character, 营 (yíng), carries a core sense of "to operate", "to manage", or "to seek". The second, 救 (jiù), straightforwardly means "to save" or "to rescue". Their combination is not merely additive but logical and directional: the concept of 营救 emerges from the idea of actively operating or striving toward (营) the specific goal of carrying out a rescue (救), thus forming the complete sense of "to carry out a rescue operation" or "to save through concerted effort".