Related Clues:

• Acme's opposite
• It's beneath you
• The lowest point to drain into
• Point opposite the zenith
• Minimum level or sea bottom
• The lowest point
• Lowest point, or time of deepest depression.
• Inside horizontal surface
• Drain to lowest level
• Drain to lowest point
• The lowest point in drain
• Drain to the lowest point
• Drain into the lowest point (5)
• Drain into lowest point
• Horizontal surface