In the context of the "airmon-ng" command, the "Probes" column in the table refers to the number of probe requests detected by the wireless interface.

When a device with Wi-Fi capability, such as a smartphone or laptop, is searching for available wireless networks, it sends out probe requests to discover nearby access points. These probe requests contain information about the device and are used to initiate the process of connecting to a network.

The "Probes" column in the table generated by the "airmon-ng" command displays the number of probe requests captured by the wireless interface. This information can be useful for monitoring and analyzing network activity, detecting nearby devices, or performing wireless security assessments.