turf

When you're walking on the perfect green grass of a golf course, you might remark on the gorgeous turf. Turf is the top layer of ground, especially when it's planted with grass.

From its original meaning, referring to the top layer of soil in which plants are rooted, turf has expanded to include a range of senses. While you might carefully maintain your beautiful backyard turf, your dog might think of it as his turf, barking to defend it from intruders. This sense of turf means "range of influence," or territory. Both meanings of the word come from a Germanic root that originated in a Sanskrit word, darbha, "blade of grass."

Definitions of turf
1

n the territory claimed by a juvenile gang as its own

Type of:
city district
a district of a town or city

n range of jurisdiction or influence

“a bureaucracy...chiefly concerned with turf...and protecting the retirement system”
Type of:
jurisdiction
in law; the territory within which power can be exercised

n surface layer of ground containing a mat of grass and grass roots

Synonyms:
greensward, sod, sward
Types:
divot
a piece of turf dug out of a lawn or fairway (by an animals hooves or a golf club)
Type of:
ground, land, soil
material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use)

v cover (the ground) with a surface layer of grass or grass roots

Type of:
cover
provide with a covering or cause to be covered

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