English Idioms About “General”
Idiom: Never mind
Meaning: 1. it’s not important; 2. do not be concerned (about someone or something, or about doing something)
Example: 1. I’m soory I’ve lost your book. — Never mind, I don’t need it anymore. 2. Go and I’ll join you later. Never mind about me.

English Idioms About “Nature”
Idiom: Salt of the earth
Meaning: Said about somone who is honest and good.
Example: He is the salt of the earth. He always helps the poor.

English Idioms About “Names”
Idiom: John Hancock
Meaning: A person’s signature.
Example: Put your John Hancock at the bottom of the page.

English Idioms About “Colors”
Idiom: Feel blue
Meaning: To feel sad.
Example: She felt blue after her divorce.