English Idioms: Zero hour

English Idioms About “Nature”
Idiom: Gain ground
Meaning: To become popular, to make progress, to advance.
Example: The new product gained ground in a very short time.

English Idioms About “Animals”
Idiom: Keep the wolf from the door
Meaning: To have enough money to be able to ward off poverty or hunger.
Example: They were really very poor, but they had enough to keep the wolf from the door.

English Idioms About “Nature”
Idiom: Walk on air
Meaning: Very excited or happy.
Example: He was walking on air after he passed the exam.

English Idioms About “Numbers”
Idiom: Public enemy number one
Meaning: The idiom public enemy number one refers someone or something that people hate.
Example: That terrorist is considered public enemy number one.

English Idioms About “Parts of the body”
Idiom: Behind one’s back
Meaning: In one’s absence
Example: He was talking nonsense on my back when I arrived.

English Idioms About “Time”
Idiom: Turn back the clock
Meaning: (Also wind back the clock or roll back the clock) figuratively to return in time to an earlier period of history.
Example: When their relationship had started deteriorating, he told her that they should turn back the clock and just go back to when things were simpler.