20 entries under observer topic. ×

21
witness(noun, verb, person, see, observe)
17
onlooker(noun, person, witness, fan)
14
bystander(noun, person, witness, fan, testimony)
14
spectator(noun, person, witness, proof, testimony)
13
viewer(noun, person, see, witness, fan)
11
beholder(noun, person, witness, fan, testimony)
11
watcher(noun, person, witness, fan, testimony)
9
looker-on(noun, person, witness, fan, testimony)
5
perceiver(noun, watcher, spectator, viewer)
4
deponent(noun, evidence, witness, proof, testimony)
2
attestant(noun, witness, proof, testimony)
2
testifier(noun, witness, proof, testimony)
1
attestor(noun, witness, proof, testimony)
1
corroborator(noun, witness, proof, testimony)
1
gawker(noun, witness, proof, testimony)
1
proof(noun, witness, testimony, watcher)
1
rubbernecker(noun, witness, proof, testimony)
1
signatory(noun, witness, proof, testimony)
1
signer(noun, witness, proof, testimony)
1
testimony(noun, witness, proof, watcher)
10 years ago|4.5k views|share |citing 
APASmart Define. (2016). eyewitness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/eyewitness/thesaurus/synonyms
ChicagoSmart Define. 2016. "eyewitness thesaurus" https://smartdefine.org/eyewitness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, eyewitness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/eyewitness/thesaurus/synonyms>.
MLASmart Define. "eyewitness thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/eyewitness/thesaurus/synonyms>