glower glower /ˈglaʊɝ/

noun

1. An angry stare  ( glower , glare )
   an angry stare
   

verb

1. () Look at with a fixed gaze  ( glower , glare )
   look at with a fixed gaze
    The girl glared at the man who tried to make a pass at her
   The girl glared at the man who tried to make a pass at her
   
2. Look angry or sullen, wrinkle one's forehead, as if to signal disapproval  ( glower , lour , lower , frown )
   look angry or sullen, wrinkle one's forehead, as if to signal disapproval
    I could see my boss's frown when I told him about my mistake
   I could see my boss's frown when I told him about my mistake