<p><strong>Noun</strong></p><ul><li>the act or process of forming or the state of being formed: the formation of ice.</li><li>the manner in which a thing is formed; disposition of parts; formal structure or arrangement.</li><li>Military: a particular disposition of troops, as in columns, squares, etc.</li><li>any required assembling of the soldiers of a unit.</li><li>Geology: a body of rocks classed as a stratigraphic unit for geologic mapping.</li><li>the process of depositing rock or mineral of a particular composition or origin.</li></ul><p><strong>Synonyms</strong></p><ul><li>organization, establishment</li></ul>