difficult / hard, probably impossible

operate (machinery)

maneuver, operate

a loom / woven cloth

operability

operator

remote control, remote operation (doing something from a distance)

a machine, a device; a contraption / a loom / an opportunity, a chance to do something; the right time or moment / something of great importance: the linchpin of the matter

indicates aircraft / indicates paper aeroplanes / indicates lives in video games

a trap or snare that works by beheading the bird or beast caught in it