1. Being on the outside.

2. A shot that strikes the division of a target farthest from the bull's eye.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• outiers,
• otder,
• ofte,
• onter,
• arter,
• ouver,
• orten,
• owmer,
• quater,
• otjer,
• outerr,
• outr,
• eiter,
• oused,
• outour,
• coutor,
• qoute,
• ofeer,
• ouiet,
• coutier

• outdraw,
• outre.

The adjective form of the word "outer" is "outermost".

The plural form of "outer" is "outers"

The singular form of the word "outer" is "outer" itself. It does not change in its singular form; it remains the same as the plural form.