red light Synonyms

stop light warning light stoplight red rag writing on the wall handwriting on the wall Aunt Flo amber light turndown wake-up call traffic signal Red River pedestrian light red traffic light red lamp delicate subject advance warning stop sign traffic control yellow light warning sign thumbs down traffic light signal casus belli forewarning disapproval caution avant-courier auspice announcement alert alarum alarm indication no red flag warning veto sign semaphore rejection refusal rebuff nod admonition