apex, height

CLIMAX
WordClue
TOPpeak, apex
ACMEclimax, culmination
APEXclimax, height
HEADacme, summit
PEAKtop, apex
PRIMEpeak, efflorescence
FLOWERprime, peak
HEIGHTclimax, acme
SUMMITapex, zenith
ZENITHapex
ALTITUDEhighness, height
HIGHNESSaltitude, height
MOUNTAINpeak
PINNACLEpeak, top
DIMENSIONwidth or height
ELEVATIONheight above a fixed reference point
ZENITHapex
TOPapex, peak