apex//ˈeɪ.pɛks//B2Frequency Level 12FormalNounapexSingularapexesPlural1The highest point, peak, or tip of something.The climbers finally reached the apex of the mountain.2The point of greatest success, achievement, or culmination.She reached the apex of her career when she won the Nobel Prize.SynonympeaksummitpinnacleAntonymbasenadir
