1
activated
1
actuated
1
admit(verb, open, start, initiate, enter)
1
advance guard
1
adviser(noun, guide, model, leader, director)
1
aforeknown
1
aforementioned
1
aforesaid
1
ahead(adjective, head, beginning, opening, original)
1
ahead of
1
airhead
1
alpinist
1
analyst(noun, person, search, first)
1
anatomist(noun, person, search, first)
1
announcer
1
antecessor(noun, precursor)
1
anterior(adjective, head, beginning, prime, past)
1
appear(verb, open, leave, establish, create)
1
archetypal(authentic, first, previous, initial, earliest)
1
arise(verb, open, leave, establish, create)
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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>