Some words that mean highest point are top, summit, pinnacle, or apex.
Apogee and peak are also words for highest point.
Words meaning the highest point: * peak * climax * pinnacle * top
it means peak or the highest point
Culmination means reaching a highest point.
epitome
apex, acme
The word Zenith means the highest or most powerful point. Nadir means the weakest. Also, Peak, as in a mountain peak.
The word is treetop.
Probably ZENITH which basically means utmost.
The highest point of a fir is the treetop.
It means to reach the highest point,summit or highest development
Treetop, the highest point on any tree.
Word that refer to a physically highest point include acme, aphelion, apogee, apex, crest, peak, summit, vertex, and zenith. 12-letter words relating to "highest point" (which itself has 12 letters) would include the adjectives transcendent (beyond normal) unparalleled (without equal) and the nouns consummation (final step) championship (highest level in many competitions).