noun
sexual intercourse; bedroom activities
A somewhat formal or euphemistic term for sexual relations, often used in the context of married couples.
夫婦の房事は、互いの愛情を深める大切な時間です。
Marital intimacy is an important time for deepening mutual affection.
医師は患者に房事の頻度について尋ねた。
The doctor asked the patient about the frequency of sexual intercourse.