Meaning of heavy-duty

heav•y-du•ty

Pronunciation: (hev'ē-d'tē, -dy'-), [key]
— adj.
  1. providing an unusual amount of power, durability, etc.: heavy-duty machinery; heavy-duty shoes.
  2. very important, impressive, or serious: heavy-duty involvement; heavy-duty questions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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