structural divergence

Duality of meaning and structure.

Epitomized by a convergence of structure and a divergence of meaning on one end and a divergence of structure and a convergence of meaning on the other end.

Attribute of metonymy.

Structural divergence is the foundation of contrapositivity.

meaning-structure divergence

Metonymy

The structural duality of meanings of words being synthetic (additive) on the future end of the linear timeline and convergent on the past side while the phonemes (phonetic parts) of words are conflationary on the future side and synthetic (additive) on the past end.

The meaning-structure divergence (metonymy) of linguistics is an example of structural divergence.