/ ˈaʊtɪŋ; NAmE / noun
1.
[ C ] outing (to ... ) a trip that you go on for pleasure or education, usually with a group of people and lasting no more than one day
SYN excursion :
We went on an outing to London.
a family outing
➡ note at trip
2.
[ C ] ( sport ) ( informal ) an occasion when sb takes part in a competition
3.
[ U , C ] the practice of naming people as homosexuals in public, when they do not want anyone to know
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WORD ORIGIN
late Middle English (in the sense the action of going out or of expelling ): from the verb out + -ing .