A weapon.
A pitcher
A group of patients in a medical trial.
A limb, or locomotive or prehensile organ, of an invertebrate animal.
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.
The extended portion of the upper limb, from the shoulder to the elbow.
The part of a piece of clothing that covers the arm.
One of the two parts of a chromosome.
Heraldic bearings or insignia.
A branch of an organization.
A bay or inlet off a main body of water.
The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.
Power; might; strength; support.
To be pitied; pitiful; wretched.
Poor; lacking in riches or wealth.
To supply with armour or (later especially) weapons.
To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency.
To take up weapons; to arm oneself.
To fit (a magnet) with an armature.
To prepare (a tool, weapon, or system) for action; to activate.
To supply with the equipment, knowledge, authority, or other tools needed for a particular task; to furnish with capability; to equip.
To become prepared for action; to activate.
A twelve-bore gun.
A jury (normally composed of twelve persons).
The police; law enforcement, especially a narcotics officer.
Front (front side of something, position in front of something).
A group of twelve items.
The cardinal number occurring after eleven and before thirteen, represented in Arabic numerals as 12 and in Roman numerals as XII.