Peak (8)
'peak' is the definition.
(I know that peak can be written as pinnacle)
This is all the clue.
(Other definitions for pinnacle that I've seen before include "High point of rock" , "Topmost point" , "High pointed piece of rock" , "The highest level" , "Place inn on the very top" .)
'peak' is the definition.
(mountain peak is a kind of peak)
This is all the clue.
(Other definitions for mountain that I've seen before include "Eg, K2" , "One of a range" , "nickname of US State" , "High peak" , "Eminence" .)
'peak' is the definition.
(synonyms)
This is all the clue.
(Other definitions for acme that I've seen before include "Summit - climax" , "Came awkwardly to the highest point" , "Aim of mountaineers" , "Point of maximum development" , "Highest stage of development" .)
'peak' is the definition.
(I know that peak can be written as apex)
This is all the clue.
(Other definitions for apex that I've seen before include "The highest point or pointed end" , "Tip -- top" , "Point or summit" , "Apogee, summit" , "Acme" .)
'peak' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for zenith that I've seen before include "Top point" , "Highest point (on celestial sphere)" , "Top of battered" , "Peak" , "Greatest height" .)
'peak' is the definition.
(I know that peak can be written as summit)
This is all the clue.
(Other definitions for summit that I've seen before include "Pinnacle or crest" , "Top of a mountain, or meeting between heads of government" , "Crown" , "Top or extreme point" , "High point" .)