rendezvous; tryst; (lover's) meeting; (secret) date
二人は密かに逢瀬を重ねていた。
The two continued to meet secretly.
月明かりの下で逢瀬を楽しんだ。
They enjoyed their tryst under the moonlight.
逢瀬の場所は小さな茶屋だった。
The meeting place for their rendezvous was a small teahouse.