Synonyms|131Antonyms|0|Broader|12Narrower|0Related|27
1
parachute flare
1
pilot flag
1
poke
1
police whistle
1
preliminary sign
1
premonitory sign
1
premonitory symptom
1
prodroma
1
prodrome
1
quarantine flag
1
radio beacon
1
red rag(noun, expression, signal)
1
rocket
1
sailing aid
1
semaphore
1
semaphore flag
1
semaphore telegraph
1
sign
1
signal
1
signal beacon
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APASmart Define. (2015). red flag thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/red_flag/thesaurus/synonyms
ChicagoSmart Define. 2015. "red flag thesaurus" https://smartdefine.org/red_flag/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, red flag thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/red_flag/thesaurus/synonyms>.
MLASmart Define. "red flag thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/red_flag/thesaurus/synonyms>