Subtopics and Related Terms---------------------------------------------------Keener---------------------------------------------------Keep (4573 Occurrences)Keen (3 Occurrences)Keen-edged (2 Occurrences)Penetrates (1 Occurrence)Purposes (67 Occurrences)Pierces (8 Occurrences)Severance (1 Occurrence)Sharpest (2 Occurrences)Secret (341 Occurrences)