Language framing—the choice of linguistic structure, tone, word connotation, cultural translation, and emotional encoding—plays a critical role in shaping consumer perception in international advertising. Rather than serving merely as a communication vessel, language acts as a psychological trigger influencing identity, trust, emotion, and purchase intention. This research examines how linguistic framing affects global advertising effectiveness across cultural, regional, and digital contexts. Using multilingual case analyses and hypothetical datasets, the study shows that language choice impacts brand authenticity, emotional resonance, cultural alignment, and perceived product value. A Global Linguistic Framing Model is proposed to guide multinational advertising strategies.