armhole

technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb n any projection that is thought to resemble a human arm n any instrument or instrumentality used in fighting or hunting n the part of an armchair or sofa that supports the elbow and forearm of a seated person n a division of some larger or more complex organization n the part of a garment that is attached at the armhole and that provides a cloth covering for the arm v prepare oneself for a military confrontation v supply with arms

Arm scye, a cutter's term for the armhole or part of the armhole of the waist of a garnment.

the part of a garment that is attached at the armhole and that provides a cloth covering for the arm n

n the part of a garment that is attached at the armhole and that provides a cloth covering for the arm n small case into which an object fits