subs.
Top: P. and V. κορυφή, ἡ, ἄκρον, τό, V. ἄκρα, ἡ; see top.
Met., highest point: P. and V. ἀκμή, ἡ. ἄκρον, τό.
Be at the summit, v.: P. and V. ἀκμάζειν.