apex
apex /'eɪpeks/ (apexes)
1 [N-SING] usu the N of n
The apex of an organization or system is the highest and most important position in it.
At the apex of the party was its central committee.
= top
2 [N-COUNT] usu sing, oft the N of n
The apex of something is its pointed top or end.
...the apex of the pyramid.
1 [N-SING] usu the N of n
The apex of an organization or system is the highest and most important position in it.
At the apex of the party was its central committee.
= top
2 [N-COUNT] usu sing, oft the N of n
The apex of something is its pointed top or end.
...the apex of the pyramid.