n.[C]

1. 祖父；外祖父
   My grandfather arrived in New York after the Civil War.

   我祖父在南北戰爭之後來到紐約。

2. 老祖宗
   The church supper is the grandfather of the country club.

   教堂的晚餐聚會是鄉間俱樂部的前身。

3. 老先生，老大爺；老年人
4. 老爺鐘（落地式大時鐘）
5. 【美】【俚】高年級學生

vt.

1. 不受新條例，新規定限制
   The city passed an ordinance restricting the size of advertising signs, but grandfathered all those signs erected before 1992.

   該城市通過了限制廣告招牌大小的條例，但是一九九二年以前豎立的招牌不在此限。

n.

1. the father of one's father or mother.
2. a founder or originator.

v.