English Idioms About “Colors”
Idiom: Red-letter day
Meaning: A particularly significant day (personal or sectarian), usually very positive, sometimes very negative.
Example: Monday was a red letter day for her. She accomplished a lot and had fun doing it.

English Idioms About “Time”
Idiom: Clock on
Meaning: To register one’s arrival at work
Example: They clocked on as soon as they arrived at work.

English Idioms About “Health”
Idiom: Be full of beans
Meaning: Said about someone who is active, lively, healthy and has a lot of energy and enthusiasm.
Example: He’s always full of beans when he goes to work.

English Idioms About “Names”
Idiom: Walter Mitty
Meaning: A person, generally quite ordinary with unexceptional qualities, who is prone to fantastic daydreaming of personal triumphs. This term comes from James Thurber’s short story, The Secret Life of Walter Mitty (1939), describing a meek, mild man with a vivid fantasy life. The character’s name has come into more general use to refer to an ineffectual dreamer.
Example: If you are a Walter Mitty with Everest dreams, you need to bear in mind that when things go wrong up there, you may lose your life.

English Idioms About “Health”
Idiom: In the best of health
Meaning: Very healthy.
Example: He’s in the best health because he exercises regularly and doesn’t eat junk food.