141 entries under opening topic. ×

1
cardinal(adjective, head, original, prime)
1
countdown(noun, start, birth, dawn)
1
embarkation(noun, cause, start, source)
1
enrollment(appearance, start, arrival, initiation)
1
essentials(addition, establishment, introduction, preface)
1
exit(noun, birth, dawn, onset)
1
exordium(noun, lead, launch, addition)
1
first acquaintance(expression, addition, establishment, introduction)
1
first step(noun, expression, appearance, birth)
1
first taste(expression, addition, establishment, introduction)
1
hornbook(addition, establishment, preface, foreword)
1
influx(addition, establishment, introduction, preface)
1
ingress(cause, start, addition, establishment)
1
insertion(addition, establishment, introduction, preface)
1
instigation(noun, start, reason, element, matter)
1
interpolation(addition, establishment, introduction, preface)
1
jump-off(noun, birth, dawn, onset)
1
key(adjective, head, original, prime)
1
lead(noun, adjective, launch, addition)
1
leading(adjective, lead, head, original)
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APASmart Define. (2015). beginning thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/beginning/thesaurus/synonyms
ChicagoSmart Define. 2015. "beginning thesaurus" https://smartdefine.org/beginning/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, beginning thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/beginning/thesaurus/synonyms>.
MLASmart Define. "beginning thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/beginning/thesaurus/synonyms>