14 entries under indication topic. ×

36
harbinger(noun, forerunner, messenger, usher, vanguard)
34
herald(noun, forerunner, messenger, usher, vanguard)
24
foregoer(noun, forerunner, forebear, pioneer, predecessor)
21
prototype(noun, original, pioneer, forerunner, predecessor)
15
pioneer(noun, forerunner, predecessor, forebear, antecedent)
13
messenger(noun, forerunner, herald, usher, vanguard)
10
antecessor(noun, sign, original, origin)
6
sign(noun, mark, light, evidence)
4
model(noun, sign, original, pattern)
4
pattern(noun, sign, original, example)
4
portent(noun, mark, light, sign)
2
omen(noun, mark, light, sign)
2
augury(noun, mark, light, sign)
2
envoy(noun, sign, herald, mediator)
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APASmart Define. (2016). precursor thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/precursor/thesaurus/synonyms
ChicagoSmart Define. 2016. "precursor thesaurus" https://smartdefine.org/precursor/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, precursor thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/precursor/thesaurus/synonyms>.
MLASmart Define. "precursor thesaurus" 29 February 2016. Web. 20 September 2026. <https://smartdefine.org/precursor/thesaurus/synonyms>