a.

1. 禮節的；禮儀的；儀式的
   the President's ceremonial duties

   總統禮儀方面的職責

2. 正式的

n.

1. 禮節；禮俗[U]
2. 儀式，典禮[C]
   Tonight there will be a tribal ceremonial of great importance to mark the chief's birthday.

   今晚有一項重要的部族慶典，慶祝酋長的生日。

adj.

1. relating to or used for ceremonies.
2. (of a post or role) involving only nominal authority or power.

n.

1. the ritual procedures observed at grand formal occasions.
2. a ceremony.