5 entries under introductory topic. ×

20
preliminary(noun, adjective, start, simple, opening)
16
preparatory(adjective, start, words, basic, precedence)
11
preceding(adjective, precedence)
8
prior(adjective, precedence, precursor)
5
prolegomenous(adjective, start, words, preliminary)
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APASmart Define. (2015). prefatory thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/prefatory/thesaurus/synonyms
ChicagoSmart Define. 2015. "prefatory thesaurus" https://smartdefine.org/prefatory/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, prefatory thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/prefatory/thesaurus/synonyms>.
MLASmart Define. "prefatory thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/prefatory/thesaurus/synonyms>