turf-n; 4 Senses

Sense Number 1: ground or earth with grass rooted in it

Commentary: TURF[+entity][+substance][+surface][+soil][+grass][+rooted]

Examples:
The turf on the golf course felt springy from the recent watering.
These rolls of turf will be laid out as lawns for these new houses.
The turf on the racetrack is slippery today from rain. (the actual surface of the racetrack)

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: the home territory of a social group

Commentary: TURF[+location][+territory][+home][+group/+individual]

Examples:
There is a turf battle going on between those two drug gangs in Detroit.
The team will play tomorrow's game on their home turf.
Each salesman has his own turf to cover in New England.
The writer seems on unfamiliar turf in the themes of his latest novel. (metaphoric extension)
These are people who could hurt him on his own foreign policy turf. (metaphoric extension)

Mappings:
WordNet 3.0 Sense Numbers: 2, 3

Sense Number 3: horse racing in general

Commentary: TURF[+event][+horse_racing]

Examples:
Pete spends a lot of his money gambling on the turf.
It's expensive to breed and train horses for the turf.

Mappings:
WordNet 0.0 Sense Numbers: 2

Sense Number 4: dried peat used as fuel

Commentary: TURF[+entity][+substance][+peat][+dried][+fuel]

Examples:
The old man threw some more turf onto the fire.
These little cottages are heated by burning turf in their fireplaces.

Mappings:
WordNet 0.0 Sense Numbers: 2