127 entries under noun topic. ×
| follower | |
| passerby | |
| picket(plant, watch, guard, agent) | |
| analyst(feature, person, individual, analysis) | |
| auditor | |
| investigator(plant, agent, operative, informer) | |
| listener | |
| lookout(plant, watch, guard, agent) | |
| noter | |
| passer-by | |
| regarder | |
| annotator | |
| attestant(witness, proof, testimony, watcher) | |
| audience | |
| birdwatcher | |
| bumper | |
| celebrator | |
| citer | |
| conformist | |
| critic |
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| APA | Smart Define. (2016). observer thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/observer/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "observer thesaurus" https://smartdefine.org/observer/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, observer thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/observer/thesaurus/synonyms>. |
| MLA | Smart Define. "observer thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/observer/thesaurus/synonyms> |