(in the singular, formerly also plural) Ellipsis of United States of America. / (in the plural) The collection of individual states of the United States of America.

A region in northern Israel containing Galilee, and Tiberias.

(chemistry) the state of an atom having a particular oxidation number

The capital city of a state (national subdivision).

(physics) a vacant electron energy state near the top of the energy band of a solid; the movement of electrons between such states is the basis of electrical conduction

(physics) A superposition of the most extreme states possible in a system, analogous with Schrödinger's cat, which is in a superposition of "dead" and "alive".

(physics) The stationary state of lowest energy of a particle or system of particles.

A state or country that is governed constitutionally as one single unit, with one constitutionally created legislature.

plural of head of state

(physics) A composite of two or more particles that behaves as a single particle.