こうさい交際kousai
1.

The act of engaging in personal relationships or interactions with others on a social level, often characterized by companionship and mutual involvement.

2.

The state of building connections and interacting socially with people, including forming friendships and participating in social circles.

3.

The practice of cultivating relationships, often involving emotional or social exchanges, that may include dating or friendly connections.

4.

The manner in which an individual maintains and navigates social relationships, reflecting their ability to connect with various people in society.

Example:

その男は妻と交際し始めた。

こうさいはんい交際範囲kousaihan'i
1.

The range of social relationships and connections that an individual maintains with others.

2.

The network of personal interactions and friendships that define a person's social life.

3.

The extent and variety of acquaintances and peers in one's social environment.

4.

The breadth of interpersonal relationships and the social context in which a person engages with others.

こうさいひ交際費kousaihi
1.

Expenditures incurred for socializing or maintaining relationships within a community or organization.

2.

Costs associated with professional interactions and networking in a corporate setting that are not deductible when calculating taxable income for corporate tax purposes.

3.

Funds allocated for hosting or participating in social events to foster connections and goodwill among business partners or clients.

えんじょこうさい援助交際enjokousai
1.

A form of relationship in which a young female student engages in sexual activities with older men in exchange for financial support or material goods.

2.

An arrangement where individuals enter into temporary romantic or sexual partnerships primarily for the purpose of receiving monetary assistance or gifts, particularly prevalent among students.

3.

A transactional dating practice that emerged in the mid-1990s in Japan, often involving an informal agreement between parties where one party provides financial assistance in return for companionship or intimacy.

4.

A social phenomenon characterized by young women forming relationships with older men, often leading to sexual encounters, as a means of gaining economic benefits.

こうさいあいて交際相手kousaiaite
1.

A person with whom one is romantically or emotionally involved, typically characterized by mutual affection and commitment.

2.

An individual that one regularly spends time with in a romantic context, often sharing personal experiences and emotional support.

3.

A partner in a dating relationship, signifying a level of intimacy or engagement that goes beyond casual acquaintance.