- Definitions|0
- Thesaurus|88
- Abbreviations|1
| danger sign(expression, revelation, portent, prophesy, preindication) | |
| gathering clouds | |
| symptom | |
| high sign | |
| red flag | |
| red light | |
| sign of things to come(noun, expression, idiom, revelation, portent) | |
| skull and crossbones(expression, idiom) | |
| skunk | |
| stormy petrel | |
| thundercloud | |
| adroit | |
| adumbration(revelation, portent, prophesy) | |
| alarm actuation(expression, idiom) | |
| alarm transmission(expression, idiom) | |
| apprehensiveness(revelation, portent, prophesy) | |
| auspice(revelation, portent, prophesy) | |
| bad vibe(expression, revelation, portent, prophesy) | |
| bad vibes(expression, revelation, portent, prophesy) | |
| beginning |
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| APA | Smart Define. (2015). warning sign thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/warning_sign/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "warning sign thesaurus" https://smartdefine.org/warning_sign/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, warning sign thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/warning_sign/thesaurus/synonyms>. |
| MLA | Smart Define. "warning sign thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/warning_sign/thesaurus/synonyms> |