Related Clues:

• Brink or threshold
• "Women on the ___ of a Nervous Breakdown" (1988 film)
• Point that marks the beginning of a change
• Crescent moon feature
• Where some signs change
• Where two branches of a curve meet, in math
• "Standing on the ___ of Getting It On" (Funkadelic album)
• Brink or border
• Margin or brink
• Pointed end where two curves meet
• Margin, edge
• Point where two arcs intersect arcs
• Astrological delineation
• Zodiacal edge
• Pick-up by clergyman, for example, is the limit