Dictionary

The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.

Example: She stood with her right arm extended and her palm forward to indicate “Stop!”

The extended portion of the upper limb, from the shoulder to the elbow.

Example: The arm and forearm are parts of the upper limb in the human body.

A limb, or locomotive or prehensile organ, of an invertebrate animal.

Example: the arms of an octopus

A long, narrow, more or less rigid part of an object extending from the main part or centre of the object, such as the arm of an armchair, a crane, a pair of spectacles or a pair of compasses.

Example: The robot arm reached out and placed the part on the assembly line.

To take by the arm; to take up in one's arms.

Poor; lacking in riches or wealth.

To be pitied; pitiful; wretched.

(usually used in the plural) A weapon.

(in the plural) Heraldic bearings or insignia.

Example: The Duke's arms were a sable gryphon rampant on an argent field.

(in the plural) War; hostilities; deeds or exploits of war.

To supply with armour or (later especially) weapons.

Example: The king armed his knights with swords and shields.

To prepare a tool or a weapon for action; to activate.

Example: Remember to arm the alarm system before leaving for work.

To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency.

Example: to arm the hit of a sword; to arm a hook in angling

To furnish with means of defence; to prepare for resistance; to fortify, in a moral sense.