72 entries under opening topic. ×

7
dawning(noun, cause, start, rise, top)
6
infancy(noun, start, top, beginning)
6
introduction(noun, cause, start, rise, top)
6
starting point(noun, expression, idiom, cause, top)
5
alpha(noun, cause, start, top, beginning)
5
fountainhead(noun, person, cause, start, rise)
5
head(noun, start, beginning, introduction)
4
day one(noun, expression, cause, start, top)
4
kickoff(noun, start, top, base, beginning)
4
square one(noun, expression, cause, start, top)
3
offset
2
flying start(noun, expression, beginning, birth)
2
jump-off(noun, beginning, birth, dawn)
2
running start(noun, expression, beginning, birth)
2
start-off(noun, beginning, birth, dawn)
2
starting
2
takeoff(noun, start, top, beginning)
2
threshold(noun, beginning)
1
bow(noun, beginning, birth, dawn)
1
countdown(noun, beginning, birth, dawn)
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APASmart Define. (2015). origin thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/origin/thesaurus/synonyms
ChicagoSmart Define. 2015. "origin thesaurus" https://smartdefine.org/origin/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, origin thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/origin/thesaurus/synonyms>.
MLASmart Define. "origin thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/origin/thesaurus/synonyms>