- a light blow or a jolting collision碰, 撞：
a nasty bump on the head.
猛撞了一下头。
- the dull sound of such a blow or collision闷撞声。
- Aeronautics a rising air current causing an irregularity in an aircraft's motion【航空】（飞机因上升气流引起的）空中颠簸。
the bumps
Brit. informal the action of lifting a person by the arms and legs on their birthday and letting them down on to the ground, once for each year of their age〈英, 非正式〉（庆祝生日时按岁数计次）抬抛：the children were given the bumps.
孩子们被抬起上抛以庆祝他们的生日。
- Rowing (in races on narrow rivers 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 and so being started ahead of it in the next race【划船】赛船中（后船追前船轻撞其尾就算赢）的追撞。
- Aeronautics a rising air current causing an irregularity in an aircraft's motion【航空】冲击气流。
- a protuberance on a level surface（平面上的）隆起物; 凸块：
bumps in the road.
路面上的凸块。
- a swelling on the skin, especially one caused by illness or injury（皮肤上的）肿块。
- dated or humorous a prominence on a person's skull, formerly thought to indicate a particular mental faculty〈旧或幽默〉（头盖骨）隆起（以前被认为是智慧和才能象征）。
- such a faculty能力, 才能：
making the most of his bump of direction.
最大限度利用他定方向的才能。
- informal, chiefly US an increase〈非正式, 主美〉增加：
there was a bump in the number of outbound flights.
出港航班有所增加。
- mass noun a loosely woven fleeced cotton fabric used in upholstery and as lining material绒布。
- no obj. knock or run into someone or something, typically with a jolt碰, 撞：
I almost bumped into him
我差点撞上他
with obj. she bumped the girl with her hip.她用屁股撞那女孩。
bump into
meet by chance偶尔遇见, 邂逅：we might just bump into each other.
我们真还可能碰见。
- with obj. hurt or damage (something) by striking or knocking it against something else（通过撞击）伤害, 毁坏：
she bumped her head on the sink.
他头撞到水池受了伤。
- with obj. cause a collide with something引起碰撞：
she went through the door, bumping the bag against it.
她出门时把包撞在了门上。
- with obj. Rowing (in a race) gain a bump against【划船】（赛船中）赢得追撞。
- no obj., with adverbial of direction move or travel with much jolting and jarring颠簸：
the car bumped along the rutted track.
汽车在沟沟坎坎的路上颠簸前进。
- with obj. and adverbial of direction push (something) jerkily in a specified direction颠簸着推向：
she had to bump the pushchair down the steps.
她不得不一颠一颠地把婴儿车推下楼梯。
- with obj. refuse (a passenger) on reserved place on an airline flight, typically because of deliberate overbooking by the airline（航空公司多因故意超额预订而）取消（旅客）订位。
- N. Amer. cause to move from a job or position, especially in favour of someone else; displace〈北美〉被迫让位于; 被取代：
she was bumped for a youthful model.
她被迫给年轻模特让位。
be bumping along the bottom
- reach the lowest point in performance or ranking without improving or deteriorating further低谷徘徊, 盘旋谷底：
the economy was still bumping along the bottom.
经济形势仍然低迷。
a bump in the road
- informal a problem or setback〈非正式〉问题; 挫折：
their relationship has hit another bump in the road.
他们的关系又遭遇了一次挫折。
with a bump
- suddenly and shockingly (especially of an unpleasant or disillusioning surprise)突然地; 震惊地：
the scandal brought them down to earth with a bump.
丑闻让他们一下子从幻想中清醒过来。
bump someone off
- informal murder someone〈非正式〉谋杀某人。
bump something up
- informal increase something〈非正式〉使增加：
the hotel may well bump up the bill.
旅馆很可能多开账。