5
heaven(noun, heaven)
5
pitch(noun, start, head, beginning, opening)
5
sexual climax(noun, sex, peak, sexual intercourse, sexual action)
5
stratosphere(noun, heaven)
5
tiptop(noun, end, top, edge, peak)
4
ether(noun, heaven)
4
angle
4
boundary(noun, limit, edge)
4
bounds(noun, limit)
4
capstone(noun, top, peak, height, summit)
4
corner
4
crowning(adjective, summit)
4
culminating(adjective, summit)
4
elevation
4
fringe(noun, limit, edge, boundary)
4
high
4
highest(adjective, summit)
4
loftiest(adjective, summit)
4
mucro(noun, sharp, point)
4
ne plus ultra(noun, expression, idiom, top, peak)
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APASmart Define. (2015). apex thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/apex/thesaurus/synonyms
ChicagoSmart Define. 2015. "apex thesaurus" https://smartdefine.org/apex/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, apex thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/apex/thesaurus/synonyms>.
MLASmart Define. "apex thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/apex/thesaurus/synonyms>