Definition of high-grade in English:

high-grade

adjective

  • 1Of very good quality.

    ‘high-grade printing papers’
    • ‘Surgical instruments are made of titanium, plastic, ceramic, aluminum, or a high-grade nonmagnetic stainless steel.’
    • ‘These funds invest in high-grade corporate bonds, charge less than 1% in fees each year and have top five-year records.’
    • ‘The Feds replied they most certainly had the right house, as well as a warrant to search it for glass pipes, of which they found a bunch, along with a pound of high-grade marijuana.’
    • ‘It's elegantly put together on high-grade paper, the writers are almost all well known in this segment, and the design is simplistic and beautiful.’
    • ‘During this time Zeiss has been a leader in improving the quality and performance of high-grade optical equipment.’
    1. 1.1 (of ore) rich in metal value and commercially profitable.
      • ‘Many mines have zones of high-grade ore that are very profitable to mine.’
      • ‘He specializes in the recovery of gemstones and mineral specimens and in the exploitation of high-grade ore deposits.’
      • ‘The high-grade ore carried 100-400 ounces of silver and 0.5-3 ounces of gold.’
      • ‘At first, miners separated high-grade ore from waste rock underground by hand.’
      • ‘At times mining operations had to cease as hundreds of illegal miners entered the pits to steal freshly blasted high-grade ore.’

Pronunciation

high-grade

/ˈhaɪ ˈˌɡreɪd//ˈhī ˈˌɡrād/