n. 25B6; noun
the climax of his career : PEAK, pinnacle, height, high(est) point, top; acme, zenith; culmination, crowning point, crown, crest; highlight, high spot, high water mark.
ORGASM; ejaculation.
nadir.
25B6; verb
the event will climax with a concert : CULMINATE, peak, reach a pinnacle, come to a crescendo, come to a head.
ORGASM; ejaculate; informal come, feel the earth move; poetic/literary die.