馴なれ合あい

noun

collusion; conspiracy; secret agreement

Refers to two or more parties secretly cooperating for a dishonest or improper purpose, often in business, politics, or competitive settings.

• その企き業ぎょうは入にゅう札さつで馴なれ合あいをしていたと疑うたがわれている。

  The company is suspected of collusion in the bidding.

• 審しん査さ員いんと出しゅつ場じょう者しゃの間あいだに馴なれ合あいがあったらしい。

  There seems to have been collusion between the judges and the contestants.

noun

illicit sexual relationship; liaison; common-law marriage

Older or literary term for a secret romantic or sexual relationship, sometimes implying an improper or informal union. Modern usage is rare; more common terms include 不倫 or 内縁関係.

• 昔むかしの小しょう説せつには、男だん女じょの馴なれ合あいがよく描えがかれている。

  Old novels often depict illicit liaisons between men and women.