n.[C]

1. 老兵；老手；富有经验的人[（+of）]
   Richard was a veteran of many battles.

   理查是个身经百战的老兵。

2. 【美】退役军人，后备军人
   There are millions of American veterans from the Second World War.

   有数百万参加过第二次世界大战的美国退伍军人。

3. 陈旧的东西；久经使用之物
   The sewing machine is a real veteran.

   那架缝纫机真是一件老古董了。

a.[B]

1. 老兵的；经验丰富的，老资格的
   You should consult a veteran doctor about your illness.

   你应该找一位经验丰富的医生给你看病。

2. 久经使用的

n.

1. a person who has had long experience in a particular field.
2. an ex-member of the armed forces.