a.

1. 整齐的；有条理的
   He gave an orderly answer to the teacher's question.

   他条理分明地回答了老师的提问。

2. 爱整洁的
3. 守秩序的；和平的
   The crowd left the square in an orderly way.

   人群秩序井然地离开了广场。

4. 传令的，值班的

n.[C]

1. （医院的）勤务员，护理员
2. 勤务兵；传令兵
3. 【英】清道夫

ad.

1. 按顺序地，挨次地
2. 整齐地，有条理地

adj.

1. neatly and methodically arranged.
2. well behaved.
3. Military  charged with the conveyance or execution of orders.

n.

1. an attendant in a hospital responsible for cleaning and other non-medical tasks.
2. a soldier who carries orders or performs minor tasks for an officer.