From Longman Dictionary of Contemporary English-ing-ing /ɪŋ/ suffix 1 SLGforms the present participle of verbs They’re dancing. to go dancing a dancing bear2 [in uncountable nouns]SLGDO the action or process of doing something She hates swimming. No parking.3 [in countable nouns] a) SLGan example of doing something to hold a meeting b) a product or result of doing something a beautiful painting4 [in nouns]DOMAKE something used to do something or used for making something a silk lining ten metres of curtaining (=cloth for curtains)
Examples from the Corpus
-ing• a meeting• underground pipingOrigin -ing 1. (1100-1200) Old English -ende2. Old English -ing, -ung 