- automatic pilot, autopilot - a cognitive state in which you act without self-awareness; "she went about her chores on automatic pilot"; "too much of the writing seems to have been done on automatic pilot"; "she talked and he dozed and my mind went on autopilot"
--1 is a kind of unconsciousness
- autopilot, automatic pilot, robot pilot - a navigational device that automatically keeps ships or planes or spacecraft on a steady course
--2 is a kind of device
--2 has parts: inertial guidance system, inertial navigation system