From Longman Dictionary of Contemporary Englishlose out phrasal verbGETto not get something good, valuable etc because someone else gets it instead The deal will ensure that shareholders do not lose out financially. to He lost out to Roy Scheider for the lead role. on Workers who don’t take up training may lose out on promotion. → lose→ See Verb table
Examples from the Corpus
lose out• It's simple -- unless you make an effort you're going to lose out.• Time and time again, women seem to lose out on promotions and career opportunities.• In the end we lost out to a French company because they could do the job cheaper.lose to• Andrew first lost out to Dawe in 1989, when he was dropped after the semi-final victory over Warwickshire.• Tierney was nominated for the Oscar, but lost out to Joan Crawford.• Enid Blyton has lost out to Nintendo.• Oblivious should not have tacked here since he loses out to Smart.• In the night with a light fair wind we had again lost out to the Black Stream.• Without decision-support systems, firms will lose out to their competitors.From Longman Business Dictionarylose out phrasal verb [intransitive] to not get something good, when someone else does get itAnother group who will lose out will be those on low incomes. onBritish industry risks losing out on business opportunities. toCompanies that do not place a priority on customer service will lose out to those that do. → lose→ See Verb table