1. Something having structure or form .

   The chorus boys and girls were put through a variety of formations in the new Andrew Lloyd Webber musical.

   The band members created many interesting formations during half-time.

2. The act of building a group or structure.
3. ( geology ) A rock or face of a mountain.
4. ( military ) A grouping of military units or smaller formations under a command , such as a brigade , division , wing , etc.
5. ( military ) An arrangement of moving troops , ships, or aircraft, such as a wedge , line abreast , or echelon . Often "in formation".
6. The process of influencing or guiding a person to a deeper understanding of a particular vocation.

Related words change

• form

Synonyms change

• ( military grouping of units ) : battle group , brigade group , task force , combat team
• ( military arrangement of forces ) : tactical formation , battle formation