1. How is that?

Encyclopedia: Howzat

• concave
• concave lens
• concave polygon
• concave polyhedron
• concave shape
• concavely
• concaveness
• concavity
• concavo-concave
• concavo-convex
• conceal
• concealable
• concealed
• concealer
• concealing
• concealment
• concede
• conceding
• conceit
• conceited
• conceitedly
• conceitedness
• conceivability
• conceivable
• conceivableness