From Longman Dictionary of Contemporary Englishpromopro‧mo /ˈprəʊməʊ $ ˈproʊmoʊ/ noun (plural promos) [countable] informalBBA a short film that advertises an event or product a promo video
Examples from the Corpus
promo• All the shopkeepers there have chipped in and hired a promo agency to drum up Christmas trade.• One hundred minutes of increasingly state-of-the-art promos.• Videos, bootlegs, promos, cuttings, rarities, Everything wanted!• The video features promo clips in addition to live, interview and behind-the-scenes footage.• The lack of expense involved complies fully with their famous refusal to produce promo videos.• Even if I have already seen the promos.From Longman Business Dictionarypromopro‧mo /ˈprəʊməʊˈproʊmoʊ/ noun [countable] informalMARKETING a PROMOTIONa movie promoOrigin promo (1900-2000) promotion 