She reciprocated his kindness by helping him move into his new apartment.

Her reciprocations of kindness strengthened the friendship over the years.

Her reciprocative smile confirmed that his affection was returned.

The team members shared feedback reciprocatively during the review session to ensure balanced improvement.

In the tight-knit community, reciprocities among neighbors strengthened social bonds during hard times.

Her kindness was reciprocable, inspiring others to respond in kind.

Scholars debated whether the reciprocalities observed in ancient trade networks implied formal treaties or informal norms.

The reciprocality between the two departments improved collaboration and trust.

The reciprocalness of their agreement reassured both parties and paved the way for long-term cooperation.

In projective geometry, the reciprocant is a contravariant that encodes a tangency condition between a curve and its polar.