A frown is a facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration. The appearance of a frown varies by culture. An alternative usage in North America is thought of as an expression of the mouth. In those cases when used iconically, as with an emoticon, it is entirely presented by the curve of the lips forming a down-open curve. The mouth expression is also commonly referred to in the colloquial English phrase, especially in the United States, to "turn that frown upside down" which indicates changing from sad to happy.

ಹುಬ್ಬುಗಂಟು ಒಂದು ಮುಖಭಾವವಾಗಿದೆ ಮತ್ತು ಇದರಲ್ಲಿ ಹುಬ್ಬುಗಳನ್ನು ಒಟ್ಟಾಗಿ ತಂದು ಹಣೆಯನ್ನು ಸುಕ್ಕುಗಟ್ಟಿಸಲಾಗುತ್ತದೆ. ಸಾಮಾನ್ಯವಾಗಿ ಇದು ಅಸಮಾಧಾನ, ದುಃಖ ಅಥವಾ ಚಿಂತೆ, ಅಥವಾ ಕಡಿಮೆವೇಳೆ ಗೊಂದಲ ಅಥವಾ ಏಕಾಗ್ರತೆಯನ್ನು ಸೂಚಿಸುತ್ತದೆ. ಹುಬ್ಬುಗಂಟಿನ ನೋಟ ಸಂಸ್ಕೃತಿಯ ಅನುಸಾರವಾಗಿ ಬದಲಾಗುತ್ತದೆ.