The idiom "level playing field" refers to a situation where everyone has an equal chance or opportunity, regardless of their background or advantage.

The idiom "a bolt from the blue" refers to an unexpected or sudden event that catches people off guard. It can also describe something surprising or unexpected, even if it's not necessarily negative. Example sentences:

• The news came as a bolt from the blue - I had no idea whatsoever.

The idiom "dog tired" means to be extremely exhausted or worn out, often to the point of being too drained to continue working or doing anything else. It can also mean feeling overworked or stressed out.

The idiom "roots run deep" means that someone or something has a strong background, connection, or history. It suggests a depth of knowledge, experience, or emotion that goes beyond the surface level.

The idiom "fate worse than death" means that a situation or outcome is so bad, it would be better if someone had died instead. It's an expression of extreme disappointment or horror at a turn of events.