It comprises particles such as atoms, ions, or molecules, packed closely together and held in fixed positions by intermolecular forces. This tight arrangement gives solids a definite shape and volume that does not easily change. Examples of solids include glass, diamond, and rubber. [1-4]

Solids are one of the four most common states of matter. A solid is a substance where the molecules or atoms are very tightly bound together. This gives a solid a very rigid volume and shape. Solid objects do not change their shape to fit into a container, as a liquid does.

The two primary categories into which solids are classified are crystalline solids and amorphous solids. The former features a highly ordered arrangement of atoms in three-dimensional space whereas the latter features a network of interconnected structural blocks.

long, yearn, hanker, pine, hunger, thirst mean to have a strong desire for something. long implies a wishing with one's whole heart and often a striving to attain. yearn suggests an eager, restless, or painful longing. hanker suggests the uneasy promptings of unsatisfied appetite or desire.

LONG definition: 1. continuing for a large amount of time: 2. being a distance between two points that is more than…. Learn more.

Wide may be used instead of long when referring to a left-to-right horizontal dimension, or to a horizontal dimension shorter than that described as long (for example, a river that is wide and long).

Long is used in expressions such as all year long, the whole day long, and your whole life long to say and emphasize that something happens for the whole of a particular period of time.