The word 必然 (bìrán) is a compound formed through the logical combination of two classical Chinese characters: 必 (bì), meaning "must" or "certainly", and 然 (rán), meaning "so", "thus", or "in such a manner". Together, they create a single concept where 必 reinforces the sense of inevitability or necessity, and 然 provides the state or condition of being that way. Thus, 必然 as a whole means "inevitable", "necessarily so", or "certainty", describing an outcome or truth that is bound to happen or be true according to logical or natural law. This formation is typical of classical Chinese, where monosyllabic morphemes are combined to express complex abstract ideas.