• noun:   any grammatical case other than the nominative
• noun:   a diagonally arranged abdominal muscle on either side of the torso
• adjective:   slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angular

  Example: "The oblique rays of the winter sun"

• adjective:   indirect in departing from the accepted or proper way; misleading

  Example: "Gave oblique answers to direct questions"

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