126 entries under expression topic. ×

8
most important(adjective, idiom)
8
number one(noun, adjective, order, bad)
5
head teacher(noun, idiom)
5
top dog(noun, idiom, superior, boss)
4
prima donna(lead, heavy, worthy)
4
school principal(noun, idiom)
3
chief executive officer(noun, idiom)
3
principal sum(noun, idiom)
2
essential part(idiom, importance, whole, greatness)
2
main part(idiom, whole, greatness)
1
best part(idiom, whole, greatness)
1
beyond compare(adjective, bad, tough, top)
1
capital gains distribution
1
chicken feed(noun, note, money, reserve)
1
commanding officer(noun, superior, judge, boss)
1
cutting edge(noun, advance, start, top)
1
dean of men
1
dean of women
1
first place(noun, advance, start, top)
1
front rank(noun, advance, start, top)
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APASmart Define. (2016). principal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/principal/thesaurus/synonyms
ChicagoSmart Define. 2016. "principal thesaurus" https://smartdefine.org/principal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, principal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/principal/thesaurus/synonyms>.
MLASmart Define. "principal thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/principal/thesaurus/synonyms>