1. the amount of data that can be transmitted over a network connection in a given period of time
Usage: computing; telecommunications
2. the range of frequencies that can be transmitted by a communication channel or electronic device
Usage: technical; electronics
3. the capacity or resources available to deal with a situation or task
Usage: informal; figurative

Examples

• The video streaming service requires high bandwidth for HD quality.
• Our internet bandwidth is too slow for video calls.
• The radio has a bandwidth of 20 MHz.
• The antenna’s bandwidth covers multiple frequency ranges.
• I don’t have the bandwidth to take on another project right now.
• The team lacks the bandwidth to handle all these requests.
• Upgrading to fiber optic will increase our bandwidth significantly.