a.

1. 每夜的
   the nightly television news

   每晚的電視新聞

2. 【舊】晚上的，夜間的

ad.

1. 每夜
   The play was performed nightly.

   這戲每晚演出。

2. 【舊】在夜間

adj.

1. happening or done every night.
2. happening, done, or existing in the night.

adv.