(n): an artifact (or system of artifacts) that is instrumental in accomplishing some end
(n): the official symbols of a family, state, etc.
(n): emblem indicating the right of a person to bear arms
(n): a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb
(n): one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper
(n): any projection that is thought to resemble a human arm
(n): any structure that branches out from a central support
(n): any instrument or instrumentality used in fighting or hunting
(n): a device that requires skill for proper use
(n): the part of an armchair or sofa that supports the elbow and forearm of a seated person
(n): a support for the arm
(n): a division of some larger or more complex organization
(n): an administrative unit in government or business
(n): the part of a garment that is attached at the armhole and that provides a cloth covering for the arm
(n): a covering made of cloth
arm
(v): prepare oneself for a military confrontation
(v): supply with arms
(v): give something useful or necessary to
Yup, I think we've got a pattern. (See comments on eyes and legs.)