The quality of being outer.

plural of outer

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.

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

plural of outering

Mongolia; a region south of Siberia, west of Manchuria and north of Inner Mongolia (with closely related native Mongolian population), well north of the Great Wall, which never became an integral part of the Chinese empire, and later achieved autonomy and full independence of China, as the republic of Mongolia

plural of outer ear

(slang, rare) kisser, someone who makes out (kisses)