operative (n.)
- active
- actor
- agent
- architect
- artisan
- author
- conductor
- counterspy
- craftsman
- creator
- detective
- doer
- driver
- dynamic
- efficient
- employable
- employee
- engineer
- executant
- executor
- executrix
- eye
- fabricator
- fed
- functionary
- functioning
- go
- gumshoe
- hand
- handler
- investigator
- laborer
- live
- machinist
- maker
- manipulator
- mechanic
- medium
- mighty
- mover
- narc
- operation
- operator
- performer
- perpetrator
- pilot
- plainclothesman
- practitioner
- producer
- revenuer
- roustabout
- ruling
- runner
- running
- scout
- shamus
- sleuth
- spotter
- spy
- steersman
- striking
- strong
- subject
- telling
- valid
- vital
- worker
- working
- workingman
- workman
operative (adj.)
- accessible
- active
- alive
- artisan
- authoritative
- cogent
- dynamic
- effective
- effectual
- efficacious
- efficient
- employable
- energetic
- eye
- fed
- forceful
- forcible
- functional
- functioning
- go
- hand
- high-powered
- high-pressure
- high-tension
- irresistible
- live
- mechanic
- medium
- mighty
- operant
- operation
- operational
- potent
- powerful
- practicable
- practical
- puissant
- ruling
- running
- spy
- striking
- strong
- subject
- telling
- usable
- valid
- vigorous
- vital
- working
