17
quality(superior, job, very best kind, high-quality)
13
superior(noun, adjective, quality, bad, great)
12
capital(adjective, quality, bad, great, excellent)
12
chief(noun, adjective, order, quality, bad)
12
numero uno(noun, expression, love, thing, prize)
11
boss(noun, adjective, bad, great, excellent)
10
prime(adjective, order, quality, excellent, lead)
9
principal(noun, adjective, order, bad, great)
8
leader(noun, thing, head, boss, chief)
7
head(noun, adjective, order, lead, heavy)
7
main(adjective, quality, bad, great, excellent)
7
major(adjective, bad, great, excellent, lead)
7
prize(noun, love, feelings, job, adore)
7
top(noun, adjective, quality, excellent, superior)
6
excellent(adjective, good, quality, bad, great)
6
first-class(adjective, good, quality, bad, complete)
6
first-rate(adjective, good, quality, bad, complete)
6
first-string(job, head, original, prime, very best kind)
6
foremost(adjective, order, lead, important, outstanding)
6
great(adjective, bad, complete, excellent, intense)
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APASmart Define. (2016). number one thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/number_one/thesaurus/synonyms
ChicagoSmart Define. 2016. "number one thesaurus" https://smartdefine.org/number_one/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, number one thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/number_one/thesaurus/synonyms>.
MLASmart Define. "number one thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/number_one/thesaurus/synonyms>