out- - pass
- out-of-balance
- out-of-balance bridge
- out-of-band
- out-of-band harmonic
- out-of-band interference
- out-of-band noise
- out-of-band radiation
- out-of-band radiation suppression
- out-of-band spectrum
- out-of-band transmission
- out-of-focus image
- out-of-service jack
- out-of-sight target
- outage
- outcome
- outdoor antenna
- outdoor recording
- outer photoeffect
- outer-effect photocell
- outermost ionosphere
- outgoing
- outgoing call
- outgoing flow
- outgoing group
- outgoing message
- outgoing traffic
- outlet
- outline dimensions
- outof-band radiation standard
- output
- output admittance
- output amplitude
- output bus
- output capability
- output capacitance
- output capacity
- output capacity of digital ic
- output cascade
- output connector
- output data
