1. light heavyweight a professional boxer who weighs between 169 and 175 pounds
  2. light flyweight an amateur boxer who weighs no more than 106 pounds
  3. lightweight weighing relatively little compared with another item
  4. lightheaded weak and likely to lose consciousness
  5. light-headed weak and likely to lose consciousness
  6. light-tight not penetrable by light
  7. light-haired being or having light colored skin and hair and usually blue or grey eyes
  8. light diet diet prescribed for bedridden or convalescent people
  9. light-footed (of movement) having a light and springy step
  10. light unit a measure of the visible electromagnetic radiation
  11. lighthearted carefree and happy and lighthearted
  12. light welterweight an amateur boxer who weighs no more than 140 pounds
  13. light-duty not designed for heavy work
  14. lighted set afire or burning
  15. light-headedly in a giddy light-headed manner
  16. lights-out a prescribed bedtime
  17. lightwood tall Australian acacia yielding highly valued black timber
  18. light-hearted carefree and happy and lighthearted
  19. heavyweight a very large person; impressive in size or qualities
  20. flight feather any of the larger wing or tail feathers of a bird

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