mare (n.)
- basin
- biddy
- bitch
- bottomland
- campo
- champaign
- charger
- colt
- courser
- cow
- critter
- delta
- desert
- dobbin
- doe
- down
- downs
- entire
- equine
- ewe
- fell
- filly
- flat
- flats
- foal
- gelding
- grassland
- gyp
- heath
- heifer
- hen
- hind
- horse
- jenny
- level
- lioness
- llano
- lowland
- lowlands
- mesa
- moor
- moorland
- mount
- nag
- nanny
- pampas
- peahen
- peneplain
- plain
- plains
- plateau
- prairie
- prancer
- roe
- savanna
- she-goat
- slut
- sow
- stallion
- steed
- steppe
- stud
- studhorse
- table
- tableland
- tarpan
- tigress
- tundra
- upland
- vega
- veld
- vixen
- weald
- wold
The grey mare is the better horse.