Sentence:  I asked the conductor if he would ask Chester to hold the 16.35 to Euston - the last through train on a Saturday - but he said Virgin won't hold anything. We came to a stand at Chester at 16.35, and there was a sizeable <WSD>stampede</WSD> down the platform for the London train, but it had gone. 
Meaning of the word marked with <WSD> tags:  A situation in which many people in a crowd are trying to go in the same direction at the same time.