Definition of runoff in English:



  • 1A further competition, election, race, etc., after a tie or inconclusive result.

    • ‘Now that the Ukrainian supreme court is nixing a run-off and ordering new elections, it's not expected to quiet down anytime soon.’
    • ‘If he fails to capture 50 per cent of the vote, there will be a run-off election against the second-place vote-getter.’
    • ‘The strategy worked exceeding well, as he bested his nearest rival by over 40 percent and won an absolute majority of the votes in the primary, making a November run-off election moot.’
    • ‘He confounded all opinion polls by coming second in the presidential elections, as a result of which he entered the run-off elections against him.’
    • ‘With all three level on five points dropped there was a run-off to decide the eventual winner.’
    • ‘The Iranian voting public put a hardliner and a conservative pragmatist into a run-off election with their ballots on Friday.’
    • ‘That's 16 riders racing over 20 heats with a first-place run-off if necessary.’
    • ‘It is four-and-a-half years since Germany beat South Africa in a bitter run-off to stage the competition and there was controversy from the start.’
    • ‘They will advance to the April 17 run-off if the results are certified later.’
    • ‘Should we have yet another recount or a run-off election?’
    • ‘Five are in the race for the presidency, and because that means a split vote, it's likely the winner won't be decided before a run-off election in late September.’
    • ‘A Prada skipper sailed out to the Hauraki Gulf Tuesday morning knowing it had to win the two races on the card to survive for a sudden-death run-off Wednesday against OneWorld.’
    • ‘The Supreme Court rejected official publication of results that showed the Prime Minister had beaten him in a run-off election on Sunday.’
    • ‘The election run-off last month was won by the Russian-backed prime minister, but after mass protests and evidence of ballot-rigging the result was cancelled by the supreme court.’
    • ‘He stunned the political establishment on Sunday by making it into the run-off election for president two weeks from now, pushing aside the Socialist Prime Minister.’
    • ‘Many Zambian observers had favoured US-style presidential primary elections that would then have had the two leading candidates in a run-off election.’
    • ‘He has been soundly beaten in the run-off for the presidential election in France.’
    • ‘Well, today's Ukrainian Supreme Court decision nullifies the results of the presidential run-off election.’
    • ‘The court agreed with the opposition that there were systematic violations in the run-off that took place November 21.’
    • ‘Public opinion polls predict no outright winner, raising the chances of a run-off election in two weeks most probably between he and the chief of the Democratic Party.’
  • 2The draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.

    • ‘Other causes of this are discharges of inadequately treated sewage from urban centres, poorly sited or malfunctioning septic tanks and run-off of fertilisers from afforestation areas.’
    • ‘Others make a home near land at nutrient run-off points from farms and power plants.’
    • ‘The family also owned lucrative coal mines in the area and run-off from these added to the pollution.’
    • ‘He, from near Thirsk, has come up with a way of reducing the surface run-off from ploughed land during and after heavy rainfall.’
    • ‘Water on even the most pristine golf courses can contain excess nutrients and organic matter from fertilizer run-off, grass clippings and leaves.’
    • ‘The main cause is excess nitrogen run-off from farm fertilizers, sewage and industrial pollutants.’
    • ‘The number of blooms is growing as a result, experts believe, of nutrients and fertilizers in farm and sewage run-off.’
    • ‘This compaction subsequently increases the risk of surface run-off of nutrients from fertiliser and slurry’
    • ‘They are smothered by sediment, and choked by algae growing on nutrient rich sewage and fertilizer run-off.’
    • ‘Fish kills provide the most dramatic form of pollution, arising from discharges of silage run-off, manure slurries and sewage and industrial waste.’
    • ‘That's long enough to get carried into the rivers by the spring run-off and spread through the whole water table.’
    • ‘The primary concern is to minimize run-off and to protect natural water courses.’
    • ‘The increasing level of phosphorus discharges to the lake, due to agricultural run-off from the surrounding land, was believed to have resulted in significant changes in the ecology of the lake.’
    • ‘Non-point pollution, in contrast, enters waterbodies in a diffuse manner, such as through run-off from farmers' fields or from forests, or as pollution seeping down into groundwater aquifers.’
    • ‘This run-off carries fertile matter from soils into the pond.’
    • ‘But over time, fertilizer run-off from agriculture, for example, may load the lake with excess nutrients.’
    • ‘They blame fertiliser run-off, increased irrigation drawing water from the river, and rising salination as tidal effects reach further up the delta from the South China Sea.’
    • ‘The Surf City contamination is almost certainly the result of urban run-off flushed into storm drains.’
    • ‘Siltation is still occurring from run-off from the land.’
    • ‘The increased phosphorus is arising from run-off from agricultural land and farmyards as well as from municipal and industrial effluent discharges.’
    1. 2.1The water or other material that drains freely off the surface of something.
      • ‘In 1983 a new 4.31-mile circuit was built incorporating some of the original track, but with an improved surface and run-off areas.’
      • ‘In addition, the mulch improves soil quality over time, minimizing water waste caused by run-off and evaporation.’
      • ‘Uncontaminated surface water run-off and rainwater from roofs shall be collected separately from slurry and shall be disposed of directly to the nearest drain, ditch, soakpit or watercourse.’
      • ‘The seeds of F. cernua disperse primarily by gravity and secondarily by surface water run-off after rare heavy rains.’
      • ‘The catchments of these basins may have a very large surface area, collecting run-off from a vast region.’
      • ‘Rainwater run-off will filter through a rock storage bed into a giant wetlands filter before it goes back into the Rouge River.’
      • ‘The fine drizzly rain synonymous with the Lakes could also change to become more tropical, heavier storms, with water run-off from the land introducing more materials into watercourses, said Dr Sweeting.’
      • ‘Adding to the problem is extensive paving in large housing complexes, which causes fast run-off into storm water drains, which are then overloaded, causing the rivers to flood and wash down pollution.’
      • ‘Furthermore, there are concerns about the pollution of the water system caused by run-off from these sites.’
      • ‘That run-off soaks through transpiration trenches, so it reduces the volume of water running off and also gives a filtration effect.’
      • ‘But there is no mention of such a phenomenon in the EIA reports of the projects on the Teesta, which is sustained by glacial melt, snowmelt run-off and monsoon rainfall.’
      • ‘Their handiwork exacerbated run-off and made homeowners more vulnerable to floods and landslides.’
      • ‘However, construction of the observation tower would cover most of this land in Tarmac and other impermeable surfaces, which would increase surface run-off, because less water can soak into the ground.’
      • ‘The trails we went to work on had literally become streams thanks to massive run-off from a new building's parking lot shedding water straight into this watershed area.’
      • ‘Since there are no rivers in Shetland, there is very little fresh water run-off in the voes (small fjords), and the chances of farmed salmon escaping up the rivers are negligible.’
      • ‘They are a result of overflowing rivers, accumulated run-off from higher land, and the practice of making low earth barriers to limit soil erosion and store water.’
      • ‘Where data does exist it may fail to consider current risks such as increased rainfall due to climate change or increased run-off of water from land due to deforestation or the drainage of wetlands.’
      • ‘What will be done about the water run-off from the built-up areas?’
      • ‘Sydney is no stranger to severe thunderstorms, and because large expanses of the urban area are paved, much of the rainfall becomes flood run-off.’
      • ‘Winding through the upper canyon, much of the trail has been washed away by the fierce spring run-off from the glaciers still hanging above.’