re-o - regi
- re-organization
- re-zero
- re-zeroing
- reach a deadlock
- reach an agreement
- reach stability
- reach the glide path
- reach the objective
- reach the stalling angle
- reachable
- reaching an agreement
- reaching stability
- reaching the glide path
- reaching the objective
- reaching the stalling angle
- reacquisition
- react to a blow
- reactance
- reactant
- reacting
- reacting to a blow
- reaction engine
- reaction force
- reaction products
- reaction torque
- reaction turbine
- reaction-impulse turbine
- reaction-jet propulsion
- reactive armor
- reactor containment
- reactor core
- reactor fuel
- read access
- read back
- read error
- read in data
- read only
- read only memory
- read operation
- read output