significacio
/ˌsɪɡnɪfɪˈkɑːsɪəʊ/(also significatio)
noun
A parallel or second meaning not directly stated in a text; the deeper or implied meaning of an allegory, emblem, symbol, etc.
Origin
1930s; earliest use found in Rosemond Tuve (1903–1964). From classical Latin significātiō (in post-classical Latin also significacio) signification.