a word said by someone to a partner during sex when the sex becomes too rough, to show that they want to stop, especially in BDSM (= sex that involves, for example, tying a partner up, or giving and receiving pain for pleasure)

Safe words are important because the words "no" or "stop" might be interpreted as a part of the scene. 安全词很重要，因为 "不 "或 "停止 "这些词可能会被理解为场景的一部分。

"Red" is the number one safe word. 红色 是头号安全词。