# Welcome to the Highcharts Gantt JS (gantt) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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# lang.numericSymbols

Metric prefixes used to shorten high numbers in axis labels. Replacing any of the positions with `null` causes the full number to be written. Setting `numericSymbols` to `undefined` disables shortening altogether.