From Longman Dictionary of Contemporary Englishround something ↔ down phrasal verbHMNto reduce an exact figure to the nearest whole number → round up For the 1841 census it was decided to round down ages over fifteen to the nearest five. → round→ See Verb table
Examples from the Corpus
round down• She could not turn round or lie down.• To each other on the roof, they were shadows moving round, bending down.• You bury one hemisphere in one bed of sand round end down, flat side flush with the top of the mold.• Then I'd just go round and round looking down on things - you know, like from a plane.• Without hesitation, the sergeant swung round and hurried down the stairs as lightly as his own considerable bulk would allow.• If the round could knock down the target, it could knock down a man.• They were little sailing boats, and they went all round, down to Ireland and Cornwall at different times.• It went round and round, down under the white water, and up again ... under the water, and up.From Longman Business Dictionaryround something → down phrasal verb [transitive] to reduce an exact figure to the nearest whole numberExact amounts of half a penny or less are rounded down. → round→ See Verb table 