1. To bring to a head or to the highest point.
2. To end, esp. to reach a final or climactic stage; SYN. climax.
3. Said of a celestial body: reach its highest altitude or the meridian.
4. To reach the highest or most decisive point.
5. To rise to, or form, a summit.
6. Reach peak or climax; Astronomy, reach meridian; be directly overhead.