Hey ‧ sel Sta ‧ di ‧ um Di ‧ sas ‧ ter, the /ˌhaɪs ə l ˈsteɪdiəm dɪˌzɑːstə, ˌheɪ- $ -ˌzæstər/ BrE AmE
the death of 39 people at a football ground in Belgium in 1985, which happened when English football supporters started fights and caused a wall to fall down. Because of this, English teams were not allowed to play in European competitions for several years.