71 entries under expression topic. ×

1
incumbent on(adjective, significant, essential, basic)
1
lead off(adjective, head, beginning, prime)
1
life or death(idiom, need, essential, basic)
1
meat and potatoes(idiom, simple, condition, straightforward)
1
name of game(noun, adjective, idiom, significant)
1
name of the game(idiom, important, essential, critical)
1
no alternative(need, essential, requirement, prerequisite)
1
no choice(need, essential, requirement, prerequisite)
1
number one(adjective, head, beginning, essential)
1
numero uno(adjective, head, beginning, prime)
1
of a piece
1
of the essence
1
of vital importance
1
opinion principle(regulation, rule, belief, statement)
1
principal element(noun, support, action, base)
1
pure and simple
1
right up front(adjective, idiom, head, beginning)
1
starting point(noun, cause, start, base)
1
universal law(regulation, rule, belief, statement)
1
unwritten rule(regulation, rule, belief, statement)
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APASmart Define. (2016). fundamental thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>