in somebody's field

[matf9999]

Hi,

When you are on someone's field, play by their rules.

What does it mean? Thanks!

[charliedeut]

Hi,

IMO, it means that when you're not in an environment you're not familiar with, you should act as you see the others acting.

charliedeut

[matf9999]

IMO, it means that when you're not in an environment you're not familiar with, you should act as you see the others acting.

Yeah. What about this one:
He is the most intelligent scientist in his field.

[5jj]

Yeah. What about this one:
He is the most intelligent scientist in his field.

What about it?. 'Field' here pretty clearly means something rather different, and a dictionary will help you discover what it does mean.

'Yeah' is not generally a good response to someone who has tried to help you. It suggests a challenge, a non-acceptance of what has been said.