cue [cues](action or event that is a signal to do something) noun [UK: kjuː] [US: ˈkjuː]
hint [hints](tacit suggestion) noun [UK: hɪnt] [US: ˈhɪnt]
innuendo [innuendos](A derogatory hint or reference to a person or thing, an implication or insinuation) noun [UK: ˌɪ.njuː.ˈen.dəʊ] [US: ˌɪ.njuː.ˈendo.ʊ]