crowning point

capstone turning point

acme apex apogee ascendancy climacteric crest extremity head height highlight intensification limit maximum meridian orgasm payoff pinnacle pitch summit tiptop top utmost zenith

capsheaf high spot ne plus ultra

base bottom foot nadir

anticlimax cliffhanger

crest maximum prominence top

acme crisis culmination dignity eminence end exaltation extremity grandeur heyday limit loftiness sublimity ultimate uttermost

high point ne plus ultra utmost degree

bottom nadir

beginning commencement opening start unimportance

depth lowness