| word(noun, information, sign, notice, alert) | |
| word to the wise(noun, expression, idiom, sign, notice) | |
| word to wise(noun, expression, idiom, alert, signal) | |
| yell(noun, alert, cry, caution, signal) | |
| aerobatics | |
| aerospace | |
| air-to-air | |
| airborne | |
| airlift | |
| airspeed | |
| alarm bell(expression, warning, bell, siren) | |
| appeal | |
| application | |
| bell(noun, alert, cry, caution, signal) | |
| counsel(notice, caution, caveat) | |
| cry for help(noun, expression, idiom, alert, alarm) | |
| demand | |
| entreaty | |
| in formation(noun, expression, signal, alarm, tipoff) | |
| notice(caution, caveat) |
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| APA | Smart Define. (2013). sos thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sos/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "sos thesaurus" https://smartdefine.org/sos/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2013, sos thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sos/thesaurus/synonyms>. |
| MLA | Smart Define. "sos thesaurus" 17 June 2013. Web. 23 September 2026. <https://smartdefine.org/sos/thesaurus/synonyms> |