partnerdom

uncountable

The state or condition of being a partner; partnership.

Japanese Meaning

パートナーである状態 / パートナーシップ

After years of collaboration, they finally reached partnerdom and began sharing responsibility and decision-making equally.

長年の協力の末、彼らはついにパートナーである状態に達し、責任と意思決定を平等に分かち合い始めた。

Sense（1）

The state or condition of being a partner; partnership.