. to make a crowd separate : اگه با زور انجام بشه
disperse /dɪˈspɜːʳs/ [transitive verb] if the police or the army disperses a crowd, they make it separate, and people leave in different directions:
National Guard troops were called in to disperse the crowd.
break up /ˌbreɪk ˈʌp/ [transitive verb] if someone, especially the police, breaks up a crowd, they make it separate, and people go away in small groups:
The police had to use tear gas to break up the protest.
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. when a crowd separates : بدون اعمال زور
disperse /dɪˈspɜːʳs/ [intransitive verb] if a crowd disperses, people begin to move away from it:
Once the ambulance had left, the crowd began to disperse.
break up /ˌbreɪk ˈʌp/ [transitive phrasal verb] if a crowd breaks up, people start to leave and move away in small groups:
When the police arrived, the crowd broke up very quickly.
thin out /ˌθɪn ˈaʊt/ [intransitive phrasal verb] if a crowd thins out, people gradually leave so that there are fewer of them in the crowd:
By midnight, the crowds outside the concert hall were beginning to thin out.
I decided to wait until the crowd thinned out a bit before trying to leave.
melt away /ˌmelt əˈweɪ/ [intransitive phrasal verb] if a crowd melts away, the people leave gradually and quietly, hoping that no one will notice:
The excitement of the arrest was over and the crowd began to melt away.