Mutuality (noun)

1. The quality or condition of being mutual.
2. A reciprocal relationship or understanding between two or more parties.

Origin:

Late 16th century: from french mutualité, from latin mutualitas, from mutualis (see mutual).

Examples:

1. The mutuality of their relationship was based on a shared love of nature and a respect for each other's opinions.
2. The mutuality of their partnership was essential to their success as business partners.
3. The mutuality of the agreement meant that each side would benefit equally from the arrangement.
4. The mutuality of the relationship between the two countries was strengthened by a series of cultural exchanges.
5. The mutuality of the agreement was reflected in the equal distribution of responsibilities and rewards.