Meaning
In networking, the maximum data transfer rate of a network; colloquially in business, a person or team's available capacity to take on work.
Three examples from work
Workplace capacity
PMDo you have the bandwidth to review this security spec today?
DevI am fully booked with the billing migration, but I will have bandwidth on Thursday.
Network performance
DevOpsVideo streaming traffic is consuming ninety percent of our provisioned network bandwidth.
LeadWe should route media delivery through Cloudflare CDN to reduce origin bandwidth costs.
Project delegation
LeadOur design team has zero bandwidth for new feature requests this sprint.
PMLet's push the landing page restyle to next month's roadmap.
Extremely common in business English: 'I don't have the bandwidth right now'. It politely communicates that you are at full capacity without sounding dismissive.