Used other than figuratively or idiomatically: see first, night.
The first night after marriage.
The first public performance of a play or other show, normally assumed to be held in the evening.
Something possessing structure or form.
An arrangement of players designed to facilitate certain plays.
An arrangement of moving troops, ships, or aircraft, such as a wedge, line abreast, or echelon. Often "in formation".
A structure made of two categories, two functors from the first to the second category, and a transformation from one of the functors to the other.
The act of assembling a group or structure.
The process during which something comes into being and gains its characteristics.
A layer of rock of common origin.
A grouping of military units or smaller formations under a command, such as a brigade, division, wing, etc.
The process of influencing or guiding a person to a deeper understanding of a particular vocation.