- breadfruit
- Bread & Puppet Theatre Company
- bread shaping machine
- breadth
- breadth first analysis
- breadth-first parsing
- breadth-first rule
- breadth first search
- breadth-first search
- breadth first search, BFS
- breadth of mind
- breadth of spectral line
- break
- breakability
- breakage
- break-before-make
- breakbulk cargo
- break contact
- break dance
- breakdown
- breakdown electric field strength
- breakdown field strength
- breakdown in dielectric liquids
- breakdown in solid dielectrics
- breakdown lag