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harm

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noun [uncountable] American English pronunciation: harm /hɑrm/
  1. injury, damage, or problems caused by something that you do

    projects that lead to environmental harm

    do/cause (someone) harm:

    The occasional piece of candy doesn't do you any harm.

    The new law is likely to do irreparable harm in urban areas.

    The "low levels" of cyanide in the river were sufficient to cause harm to aquatic life.

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