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apex

a·pex

apex

 
 
pronunciation:
eI peks
part of speech: noun
inflections: apexes, apices
definition 1: the uppermost point; tip; summit; vertex.
Wind erosion has smoothed the apex of the pyramid.Few climbers have reached the apex of the peak.
 
synonyms:
pinnacle, tip, top, vertex, zenith
antonyms:
base, bottom
similar words:
apogee, crest, crown, head, height, meridian, peak, summit, tiptop
definition 2: the climax or culmination, as of an endeavor or a reputation.
He was then at the apex of his career in the Senate.
synonyms:
acme, climax, culmination, ne plus ultra, peak, pinnacle, summit, zenith
antonyms:
nadir
similar words:
apogee, consummation, crown, height, meridian, top