93 entries under warning topic. ×
| handwriting on the wall(expression, idiom, sign, omen) | |
| housedog | |
| indication of locality(expression, idiom) | |
| lookout | |
| misgiving(sign, portent) | |
| mole | |
| notification(sign, notice, alert, caution, alarm) | |
| patrol | |
| patrolman | |
| picket | |
| plainclothesman | |
| prenotion(sign, portent) | |
| prescience | |
| presentiment(mark, light, sign, notice) | |
| rear guard(expression, idiom) | |
| scout | |
| scramble(alert, caution, bell, siren) | |
| sentinel | |
| sentry | |
| sinking feeling(expression, sign, omen) |
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| APA | Smart Define. (2016). signal thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/signal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "signal thesaurus" https://smartdefine.org/signal/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, signal thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/signal/thesaurus/synonyms>. |
| MLA | Smart Define. "signal thesaurus" 1 March 2016. Web. 29 September 2026. <https://smartdefine.org/signal/thesaurus/synonyms> |