This is the 7608th most frequent Chinese word.
超速
Speeding.
In this sentence, '超速' is used as a verb, 'to speed', particularly in the context of driving exceeding the speed limit.
他因超速驾驶被罚款。
He was fined for speeding.
Here, '超速' functions as a noun, describing the act of speeding or exceeding the speed limit.
在高速公路上超速是非常危险的。
Speeding on the highway is very dangerous.
In this example, '超速' is part of a complete noun phrase '超速行驶', again referring to the act of speeding, showing its adaptability within larger expressions.