Noun

(en noun)

The act of asserting, or that which is asserted; positive declaration or averment; affirmation; statement asserted; position advanced.

Maintenance; vindication; as, the assertion of one's rights or prerogatives.

(computing) A statement in a program asserting a condition expected to be true at a particular point, used in debugging.

Noun

(en noun)

The act of arranging.

The manner of being arranged.

A collection of things that have been arranged.

A particular way in which items are organized.

* {{quote-magazine, year=2013, month=July-August, author= Fenella Saunders

, title= Tiny Lenses See the Big Picture, magazine=(American Scientist) , passage=The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail. It’s therefore not surprising that most cameras mimic this arrangement .}}

(in the plural) Preparations for some undertaking.

An agreement.

(music) An adaptation of a piece of music for other instruments, or in another style.