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Verb: red-ink  red ingk
  1. Mark with red ink
    "red-ink the area that is restricted"
Noun: red ink
  1. The amount by which the cost of a business exceeds its revenue
    - loss, red

Derived forms: red-inks, red inks, red-inked, red-inking

Type of: amount, amount of money, ink, sum, sum of money