arm
the upper limb of the human body; to equip with weapons
He broke his arm while skiing.
armchair
a comfortable chair with side supports for the arms
She curled up in the armchair with a book.
armband
a band worn around the arm, often as a sign or decoration
He wore a black armband to mourn his friend.
armrest
a support attached to a chair for resting the arm
She rested her elbow on the armrest during the flight.
armful
an amount that can be held in the arms
He carried an armful of books into the classroom.
armament
military weapons and equipment
The country increased its armament in response to threats.
armor
protective covering used to prevent injury, especially in battle
Medieval knights wore heavy armor into battle.
forearm
the part of the arm between the elbow and the wrist
He tattooed a small symbol on his forearm.
underarm
the area beneath the arm; relating to that area
She applied deodorant to her underarm every morning.
firearm
a portable gun designed to be fired by explosive action
The police recovered a stolen firearm during the raid.