slope

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Across
  1. 4. to something else so as to increase the size, number, or amount.
  2. 5. the process or skill of taking one number or amount away from another.
  3. 7. a point or line common to lines or surfaces that intersect.
  4. 8. rising or falling sharply; nearly perpendicular.
Down
  1. 1. consisting in or characterized by the absence rather than the presence of distinguishing features
  2. 2. in nouns denoting something written or drawn in a specified way
  3. 3. a long, narrow mark or band.
  4. 5. a horizontal or vertical line; slant
  5. 6. consisting in or characterized by the presence or possession of features or qualities rather than their absence.