vi.

1. 碰，撞[Q][（+against/into）]
   The bus bumped into the car in front.

   巴士撞上了前面那辆汽车。

2. 颠簸着行进[Q][（+along）]
   The jeep bumped along the rough mountain road.

   吉普车在崎岖的山路上颠簸行驶。

vt.

1. （使）猛击；（使）冲撞；撞伤
   The room was dark and he bumped his head against the shelf.

   房间一片漆黑，他将头撞到了架子上。

2. 【美】【俚】挤掉……的座位；取代……的职务
3. 【俚】杀死，谋杀

n.[C]

1. 重击；猛撞，碰撞
   A bump on the head caused her amnesia.

   她因头部撞了一下而得了健忘症。

2. （因碰撞而起的）肿块
   I had a bump on my leg.

   我腿上有个肿块。

3. （路面的）凸块
   She tripped over a bump on the road.

   她被路上一块隆起的地面绊了一下。

4. 【口】能力，才能[the S]
5. （飞机因气流上升而产生的）空中颠簸
6. 因客满而未能搭乘原定班机
   Some passengers have to be bumped through over-booking.

   由于航空公司划位超额，有些旅客不能搭乘原预定班机，只好改搭下一班。

ad.

1. 突然地；猛烈地
   My car ran bump into the wall.

   我的汽车猛然撞上墙壁。

n.

1. a light blow or a jolting collision.
   ▸Rowing  (in races where boats make a spaced start one behind another) the point at which a boat begins to overtake or touch the boat ahead, thereby defeating it.
2. a protuberance on a level surface.
   ▸dated a lump on a person's skull, formerly thought to indicate a particular mental faculty.
3. Aeronautics  a rising air current causing an irregularity in an aircraft's motion.

v.

1. knock or run into with a jolt.
   ▸ (bump into) meet by chance.
   ▸Rowing  gain a bump against.
2. move or travel with much jolting.
3. (bump someone off) informal murder someone.
4. (bump something up) informal make something larger or appear to be larger.
5. refuse (a passenger) a reserved place on a flight because of deliberate overbooking by the airline.
   ▸N. Amer. displace from a job or position.