58 entries under essential topic. ×

18
requisite(noun, adjective, right, condition, want)
17
need(noun, verb, work, charge, understanding)
17
prerequisite(noun, adjective, condition, want, need)
17
requirement(noun, understanding, right, condition, want)
16
obligation(noun, work, charge, right, concern)
15
necessity(noun, force, understanding, right, condition)
11
condition(noun, need, essence, basic)
11
imperative(noun, adjective, need, obligation)
11
ought(noun, verb, work, charge, understanding)
9
necessary(noun, adjective, want, need)
9
demand(noun, right, want, need)
9
duty(noun, understanding, right, concern, care)
7
precondition(noun, condition, need, certainty)
7
sine qua non(noun, expression, idiom, condition, need)
6
charge(noun, work, understanding, right, care)
5
commitment(noun, work, charge, understanding, right)
5
compulsion(noun, force, understanding, passion, right)
5
right(noun, adjective, understanding, concern, care)
5
want(noun, verb, right, need)
4
devoir(noun, work, charge, understanding, right)
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APASmart Define. (2016). must thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/must/thesaurus/synonyms
ChicagoSmart Define. 2016. "must thesaurus" https://smartdefine.org/must/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, must thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/must/thesaurus/synonyms>.
MLASmart Define. "must thesaurus" 29 January 2016. Web. 23 September 2026. <https://smartdefine.org/must/thesaurus/synonyms>