n (obsolete) A berry.
n Laurus nobilis, a tree or shrub of the family Lauraceae, having dark green leaves and berries.
n Bay leaf, the leaf of this or certain other species of tree or shrub, used as a herb.
n (in the plural, now rare) The leaves of this shrub, woven into a garland used to reward a champion or victor; hence, fame, victory.
n (US, dialect) A tract covered with bay trees.
n A kind of mahogany obtained from Campeche in Mexico.
n (geography) A body of water (especially the sea) more-or-less three-quarters surrounded by land.
n A bank or dam to keep back water.
n An opening in a wall, especially between two columns.
n An internal recess; a compartment or area surrounded on three sides.
n The distance between two supports in a vault or building with a pitched roof.
n (nautical) Each of the spaces, port and starboard, between decks, forward of the bitts, in sailing warships.
n (rail transport) A bay platform.
n A bay window.
n The excited howling of dogs when hunting or being attacked.
n (by extension) The climactic confrontation between hunting-dogs and their prey.
n (figuratively) A state of being obliged to face an antagonist or a difficulty, when escape has become impossible.
v (intransitive) To howl.
v (transitive) To bark at; hence, to follow with barking; to bring or drive to bay.
v (transitive) To pursue noisily, like a pack of hounds.
adj (especially of horses) Of a reddish-brown colour.
n A brown colour/color of the coat of some horses.
n A horse of this color.
n A region of Somalia.
n A surname
n (informal) Ellipsis of San Francisco Bay Area. (metropolitan area in California); A region of California, United States [A region of California, United States The nine or twelve counties surrounding the city of San Francisco.]
n (informal) Ellipsis of San Francisco Bay.; A bay of the Pacific in California, United States