a narrow, thin shape with a sharp point at one end, or something, especially a piece of metal, with this shape

There were large spikes on top of the railings to stop people climbing over them. 栏杆顶端装着粗大的尖钉，防止有人攀越。

Some types of dinosaur had sharp spikes on their tails. 有些种类的恐龙尾部有锋利的尖突。

a set of short, pointed pieces of metal or plastic, attached to the bottom of shoes worn for particular sports, that stop the person wearing the shoes from sliding on the ground, or shoes with these pointed pieces

You will need to wear spikes when we are training.

Wearing spikes helps runners push forward on uneven ground.

I bought a new pair of spikes when I joined the team.

Spikes help players compete in wet and muddy conditions.

a very high amount, price, or level, usually before a fall

If price spikes continue, people will not be able to afford the new houses they want. 如果价格上涨的趋势继续，人们将无力购买想要的新屋。

to decide not to publish an article in a newspaper

The story was deemed too controversial and so they spiked it. 他们认为这篇报道争议太大而拒绝刊登。

to make a drink stronger by adding alcohol, or to add flavour or interest to something

She claimed that someone had spiked her drink with whisky. 她声称有人在她的饮料里加了威士忌。

The pasta was served in a cream sauce spiked with black pepper. 意大利面配的是黑胡椒奶油汁。

His writing is spiked with humour. 他的文章中带有幽默诙谐的味道。

in the sport of volleyball, to hit the ball so that it goes almost straight down on the other side of the net

to push a sharp point into something or someone

She got badly spiked when one of the runners trod on her heel. 一名跑步选手踩在她脚后跟上，她被严重扎伤了。

to rise to a higher amount, price, or level, usually before going down again

The jobless rate in October spiked to a five-year high. 十月份的失业率上升至五年来的最高点。

spike someone's gunsidiom 打乱（某人）的计划