Fencing Lines. The means of referring to a position or area on a fencer’s body. The idea behind ‘lines’ is that the torso, as facing the viewer in ‘en garde’ is bisected both laterally and vertically. There are then four quadrants of the body. The quadrants which are above the lateral line are referred to as ‘high line,’ those below as ‘low line.’ The left-hand-side, referred to as chest, is the outside. The right-hand-side, referred to as flank, is the inside. The lower chest side quadrant is then referred to as 'out-side low line.’
The common parries in foil and epée are:
sixte (inside-high),
quarte (outside-high),
octave (inside-low), and
septieme (outside-low). Angled (up-and-down) parries can also be used. I sabre, tierce replaces sixte to guard the inside-high line, quarte becomes more erect, seconde replace octave on the inside-low line, and prime replaces septieme. Quinte is used in sabre to protect the head.

Fencing terms, http://en.wikipedia.org/w/index.php?title=Fencing_terms&oldid=289019323 (last visited May 10, 2009).
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