[Solved]-Highcharts overlapping category labels-Highcharts

You don't have to use categories at all. In general categories are good to show e.g. fruits, or names - how to define which name should be displayed, and which shouldn't? Is apple more important than banana?

However, solution is pretty simple, using xAxis label formatter, take a look: http://jsbin.com/oyudan/27/edit

xAxis: {
  labels: {
    formatter: function(){
      return names[this.value];
    }
  }
},