ma|re

mare¹ «mair», noun.

a female horse or donkey, especially when mature: »

In two and a half hours, sixteen yearlings and 23 brood mares were auctioned off (Newsweek).

╂[Middle English mare, Old English mearh horse]

mare² «mair», noun. Obsolete.

1. a goblin once believed to cause nightmares by sitting on the chest of the sleeper.

2. the nightmare itself.

╂[Old English mare]

ma|re³ «MAHR ee, MAIR ee», noun, plural ma|ri|a.

1. Astronomy. a) a broad, flat, dark area on the moon: »

... these dark areas appear as smooth gray plains, so uniform that Galileo and his contemporaries thought they might be seas and accordingly called them maria (John Charles Duncan).

b) a similar dark region on any planet.

2. Latin. a sea.