The Least Common Vocabulary (LCV) is a strategic framework designed to eliminate "Ghost Value"—the economic loss occurring when different departments fail to align during critical transitions. Rather than pursuing the impossible goal of a universal corporate language, the LCV focuses exclusively on locking the handoffs by establishing the minimum viable semantic agreement at system boundaries. By creating surgical interventions at these junctions, organizations ensure that value moves between teams, such as Marketing and Finance, without any "semantic remainder" or confusion. Valid LCV nodes must be boundary-relevant, machine-executable, bidirectionally acknowledged, and ValueLog-enforced to ensure they are functional rather than merely theoretical. Ultimately, this approach treats organizational communication like a technical standard, prioritiz ...