Outside; external. / Farther from the centre of the inside.

An outer part. / (sports) An uncovered section of the seating at a stadium or sportsground. / (military, firearms) The 4th circle on a target, outside the inner and magpie.

Someone who admits to something publicly. / Someone who outs another. / One who puts out, ousts, or expels. / An ouster; dispossession. / (UK politics) One who supports leaving the European Union.

plural of outer

The quality of being outer.

plural of outering

An externalization or outer projection, such as an external technology that extends the natural reach of something.

plural of outer automorphism

plural of outer arm

An island in the United States Virgin Islands.