xìng'ài

sexual activity

性爱 (性愛) xìng'ài
sexual activity verb
sexual intercourse or the act of lovemaking

Healthy sex is considered one of the important factors in maintaining a relationship between a couple.

Frequency

Movie subtitles
19.2 per million appears in 6% of films
Written text
5.72 per million

Sources

Definitions
CC-CEDICT