"passive" - key terms from Wikipedia

acquired passive	immunity
between passive	smoking
electrons between the passive	layer
house built to the passive
passive
passive	cable theory
passive	components
passive	constructions
passive	crossover
passive	crossovers
passive	di
passive	electronically scanned array
passive	euthanasia
passive	filter
passive	fire protection
passive	gravitational mass
passive	heat sink
passive	house
passive	house standard
passive	immunity
passive	immunization
passive	income
passive	infinitive
passive	infrared
passive	layer
passive	management
passive	mode
passive	mutant
passive	optical network
passive	panel
passive	partner
passive	pfc
passive	play
passive	radiator
passive	resistance
passive	rfid
passive	right to retain
passive	safety
passive	smoking
passive	solar
passive	solar building design
passive	solar cooling
passive	solar design
passive	sonar
passive	systems
passive	transport
passive	visual warnings
passive	voice
past passive
perfect passive	participle