1. (n.) The top; the highest point.

2. (n.) The highest degree; the utmost elevation; the acme; as, the summit of human fame.

3. (n.) The most elevated part of a bivalve shell, or the part in which the hinge is situated.

acme acme of perfection all apex apogee audience bargaining bargaining session brow cap capstone ceiling climax cloud nine conclave confab confabulation conference confrontation congress consultation consummation convention council council fire council of war crest crown culmen culmination discussion edge end exchange of views extreme extreme limit extremity eyeball-to-eyeball encounter heaven heavens height high noon high-level talk highest degree highest pitch highest point hilltop huddle interchange of views interview knoll last word limit lofty peak maximum meeting meridian mountaintop ne plus ultra negotiations news conference no place higher noon nth degree palaver parley peak perfection pic pico pike pink pink of perfection pinnacle pitch point pole pourparler powwow precipice press conference ridge roof seance session seventh heaven sitting sky spire spur summit conference summitry the whole tip tip-top top tor ultimate upmost upper extremity uppermost utmost utmost extent uttermost vertex very top zenith