turf

/tɜːf/ noun [U]

Definition

› an area of activity in which a person or company has a lot of knowledge and experience and which they believe belongs to them: By launching a line in beauty products they are challenging the bigger company on its own turf. It was an unproductive meeting with everyone simply trying to defend their own turf.

come/go with the turf › used to say that someone should accept something because it is a necessary part of what they are doing: In this job customer complaints come with the turf. Of the fierce media attention he says: 'It goes with the turf'.

on home turf › in your own country, town, area, etc.: Export figures are good, but the company is losing sales on home turf.

(Definition of turf noun from the Cambridge Business English Dictionary © Cambridge University Press)