English Idioms: Knit one’s brow

English Idioms About “Colors”
Idiom: Green-eyed monster
Meaning: Envy, jealousy, covetousness
Example: 1. “O, beware, my lord, of jealousy; It is the green-eyed monster which doth mock The meat it feeds on.” William Shakespeare 2. His success aroused the green-eyed monster in his friend.

English Idioms About “Time”
Idiom: To the last
Meaning: Until the completion of something or until death.
Example: 1. Don’t worry I’ll support to the last. 2. She was a great lady to the last.

English Idioms About “Time”
Idiom: In the nick of time
Meaning: The word nick refers to a notch, cut, or indentation on an edge or a surface.
Example: I arrived at the train station in the nick of time and took the last train to the capital city.

English Idioms About “Food”
Idiom: Chew the cud
Meaning: The idiom chew the cud means to ponder over or meditate about something; to think carefully about something. Cud refers to the food regurgitated from the stomach to the mouth of a ruminant animal such as a cow and chewed again.
Example: She wanted to chew the cud before she could let them know about her decision.

English Idioms About “War”
Idiom: Bring a knife to a gunfight
Meaning: (Also, take a knife to a gunfight) To enter into a confrontation or other challenging situation without being adequately equipped or prepared.
Example: We lost the deal against much equipped competitors because we brought a knife to a gunfight.

English Idioms About “Animals”
Idiom: Have a cow
Meaning: (Also have kittens) to be very worried, upset or angry about something
Example: My father had a cow when I stayed out late yesterday.