16 entries under fulcrum topic. ×
| anchor | |
| base | |
| cornerstone | |
| essential | |
| foundation | |
| hub(noun, hinge, axle) | |
| key element | |
| keystone | |
| main ingredient | |
| mainspring | |
| mainstay | |
| pillar | |
| prerequisite | |
| requirement | |
| sine qua non | |
| vital element |
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| APA | Smart Define. (2016). kingpin thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/kingpin/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "kingpin thesaurus" https://smartdefine.org/kingpin/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, kingpin thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/kingpin/thesaurus/synonyms>. |
| MLA | Smart Define. "kingpin thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/kingpin/thesaurus/synonyms> |