- biunique
- biunivocal
- bivariable interpolation
- bivariate distribution
- bivariate process
- bivector
- bix
- black area
- black compression
- black light
- black peak
- black sheet
- black signal
- black transmission
- blackout
- blank
- blank after
- blank binder
- blank card
- blank deleter
- blank form
- blank presentation
- blanket clip
- blanking interval
- blanking signal
- block graphics
- block handler
- block header
- block mark
- block mica
- block movement
- block multiplication
- block parity
- block protection
- block retrieval
- block separator
- block sort
- block statement
- blocking
- blocking point
- blocking software
- board manufacturer
- bleeding
- blessed folder
- blind
- blind copy
- blind flange
- blind flight
- blind keyboard
- blind search
- blind zone
- blinker light
- blinking
- blinking rate
- blip
- blob
- block
- block arrows
- block body
- block buffering
- block chaining
- block character
- block check
- block cipher
- block code
- block compaction
- block constant
- block copy
- block count
- block cursor
- block definition
- block delete
- block device
- block diagram
- block diagramming
- block encryption
- block factor
- block fill
- block identifier
- block length
- block loading
- block marker
- block mode
- block move
- block paging
- block prefix
- block size
- block splitting
- block time
- block transfer
- block-structured
- blocked
- blocking factor
- blocking order
- blocking ratio
- blooming
- blow torch
- blow-out
- BND
- board lining