a signal, hint - a) a sign given by gesture, flashing light, etc. to convey a command, direction, warning, etc.; b) an object or device, as a red flag, flashing light, etc., providing such a sign.

ಕುದುರೆಗೆ ಇಷಾರೆ, ಕತ್ತೆಗೆ ಲತ್ತೆ kudurege iṣāre, kattege latte (prov.) while sensible person acts on a sign, the insensitive needs to be instructed with a cudgel.