(aeronautics) rudder (control surface of an aircraft)

helm, steering wheel (usually of a boat or ship)

ring; circle / (by extension) linked network

to guide, to conduct

direction; heading / course (in life etc.), goal

grip

grip; hold

to grasp, to grip, to hold / to seize, to take hold of / to make (nigirizushi, riceball, etc...); to press into shape

rudder, tiller, helm

(nautical) the rudder of a boat or ship / (nautical, aeronautics) the helm, tiller, or wheel of a boat or ship, or of an aircraft / (figuratively) a position of leadership or control