From Longman Dictionary of Contemporary Englishround something ↔ out phrasal verbCOMPLETEto make an experience more thorough or complete African percussion and Native American flute round out the show. → round→ See Verb table
Examples from the Corpus
round out• A few croutons, some red cabbage shreds and a few wedges of tomato unimaginatively rounded things out.• He got so embarrassed he turned round and scuttled out.• Jessamy's knees had immediately begun to shake, and she had wheeled round and run out.• Two police motor cyclists swept through the village street, turned round and went out again.• This one mortar round took out our machine - gun team, and I received some shrapnel.• But gradually she drew him round and out, round and out of the mêlée.• He went round carrying out the usual checks, asking the usual questions.• Your income is so high that you mentally round it out to the nearest $ 100,000. 