agent
animal trainer
athletic coach
coach
conductor
driller
drillmaster
driver
engineer
functionary
groomer
manipulator
operant
operative
operator
pilot
runner
steersman
trainer
handleable
handlebar
handling
access
administrator
authentication
cache
configuration
controller
folder
format
functionality
manager
menu
node
parameter
personnel
planner
protocol
server
setting
supervisor
template
Chandler
candler
chandler
landler