The top part of a dress or jumpsuit.
The word is an accident of grammar. The stiffened upper garment of the sixteenth century was known as a pair of bodies, made in two halves laced together, and the plural was spoken so often that English mistook it for a singular and respelled it accordingly. The bodice is therefore a garment that lost half of itself to a misunderstanding, and kept the name.
Where Fit Is Decided
Everything difficult about fitting a garment happens above the waist. The bodice must reconcile the bust, the shoulder, the shoulder blade and the waist — four measurements that vary independently between bodies — across a piece of cloth that has grain and will not stretch equally in all directions. The tools are few and old: darts, which fold away surplus cloth to create shape; princess seams, which do the same work while running the full length of the body and thereby disguise it; and the placement of the armhole, which governs how much of the arm can be raised before the whole garment lifts with it. A pattern cutter’s reputation is made here and nowhere else.
The Architecture Inside
In couture the visible bodice is frequently not the structural one. Beneath the outer cloth sits an internal foundation — boned, closely fitted, and anchored at the waist — which carries the weight of the skirt and holds the gown in position independently of the wearer. The silk on the outside is then free to do nothing but hang correctly, unmarked by the strain it would otherwise take. It is a hidden building, and the reason an evening gown can appear weightless while carrying several kilograms of embroidery.
For anyone entering design or product development, this is the part of the garment that rewards study most. Skirts forgive. Bodices do not.