67 entries under first topic. ×

2
initiatory(adjective, beginning, opening, original)
2
leading(adjective, head, beginning, original, prime)
2
primordial(adjective, start, head, beginning, prime)
1
aboriginal(adjective, head, beginning, original, prime)
1
analyst(noun, person, search)
1
anatomist(noun, person, search)
1
archetypal(authentic, previous, initial, earliest)
1
elementary(adjective, head, beginning, original, prime)
1
embryonic(beginning, opening, original, authentic)
1
examinant(noun, person, search)
1
examiner(noun, person, search)
1
explorationist(noun, person, search)
1
fundamental(adjective, head, beginning, opening, original)
1
inceptive(adjective, head, beginning, original, prime)
1
incipient(adjective, head, beginning, opening, original)
1
investigator(noun, person, search)
1
number one(noun, expression, adjective, pronoun, head)
1
opening(adjective, head, beginning, original, prime)
1
path-breaker(noun, person, search)
1
path breaker(noun, person, search)
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APASmart Define. (2015). pioneer thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/pioneer/thesaurus/synonyms
ChicagoSmart Define. 2015. "pioneer thesaurus" https://smartdefine.org/pioneer/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, pioneer thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/pioneer/thesaurus/synonyms>.
MLASmart Define. "pioneer thesaurus" 17 December 2015. Web. 28 September 2026. <https://smartdefine.org/pioneer/thesaurus/synonyms>