rela - resi
- relation
- relation graph
- relation symbol
- relational condition
- relational database management system
- relational operator
- relationship
- relative
- relative address
- relative addressing
- relative bearing
- relative current level
- relative density
- relative equivalent
- relative humidity
- relative level
- relative permeability
- relative power level
- relative response
- relative sensitivity
- relative voltage level
- relaxation
- relaxation circuit
- relaxation oscillation
- relaxation oscillator
- relay
- relay armature
- relay automatic system
- relay cabinet
- relay coil
- relay connection
- relay rack
- relay satellite
- relay set
- relay station
- relaying
- release
- release button
- release control point
- release current
