240 entries under noun topic. ×

48
fundamental(adjective, support, action, characteristic)
42
basic(adjective, characteristic, drop, part)
41
necessary(adjective, body, material, big)
31
requisite(adjective, right, condition, important)
24
imperative(adjective, form, fix, pass)
19
prerequisite(adjective, form, fix, pass)
19
material(adjective, drop, body, physical)
18
necessity(condition, want, need, heart)
15
requirement(form, fix, pass, position)
13
must(adjective, right, want, need)
12
sine qua non(expression, idiom, condition, importance)
11
element(form, drop, part, fix)
9
condition(position, need, shape, situation)
9
essence(nature, feature, support, action)
8
constituent(adjective, drop, part, material)
8
need(verb, concern, condition, demand)
7
demand(right, concern, want, need)
7
principle(adjective, support, action, drop)
7
rudiment(support, action, drop, part)
7
substance(adjective, importance, basic, necessity)
<1234510>
10 years ago|34k views|share |citing 
APASmart Define. (2016). essential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>