16 entries under erect topic. ×

24
vertical(noun, adjective, smooth, sharp, solid)
17
steep(adjective, sharp, course, extreme, straight)
17
upright(noun, adjective, adverb, smooth, solid)
14
straight(adjective, direct, right, level, straight)
11
sheer(adjective, smooth, sharp, solid, level)
5
standing(verb, adjective, firm, straight, upright)
5
stand-up(adjective, straight, upright, vertical)
4
upstanding(adjective, firm, straight, upright)
3
straight-up(adjective, sharp, course, straight, upright)
2
on end(expression, adjective, straight, upright)
2
upended(adjective, straight, vertical, upstanding)
1
cocked(adjective, firm, straight, upright, steep)
1
raised(adjective, sharp, firm, course, straight)
0
end on(expression, adjective, straight, vertical)
0
end up(expression, adjective, straight, vertical)
0
upward(adjective, straight, upright, steep)
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APASmart Define. (2015). perpendicular thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/perpendicular/thesaurus/synonyms
ChicagoSmart Define. 2015. "perpendicular thesaurus" https://smartdefine.org/perpendicular/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, perpendicular thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/perpendicular/thesaurus/synonyms>.
MLASmart Define. "perpendicular thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/perpendicular/thesaurus/synonyms>