Noun

(wikipedia sideboard) (en noun)

A piece of dining room furniture having drawers and shelves for linen and tableware; originally for serving food

a board that forms part of the side of something

(in the plural, chiefly, British) sideburns

A set of cards that are separate from a player's primary deck, used to customize a match strategy against an opponent by enabling a player to change the composition of the playing deck.

Noun

(en noun)

A storage closet either separate from, or built into, a wall.

(New England) cupboard

* {{quote-book, year=1963, author=(Margery Allingham)

, title=(The China Governess) , chapter=3 citation , passage=‘[…] There's every Staffordshire crime-piece ever made in this cabinet , and that's unique. The Van Hoyer Museum in New York hasn't that very rare second version of Maria Marten's Red Barn over there, nor the little Frederick George Manning—he was the criminal Dickens saw hanged on the roof of the gaol in Horsemonger Lane, by the way—’}}

(historical) A size of photograph, specifically one measuring 3?" by 5½".

* 1891 , , A Scandal In Bohemia , Norton (2005), p. 19,

Holmes took a note of it. “One other question,” said he. “Was the photograph a cabinet ?”

A group of advisors to a government or business entity.

(politics, often, capitalized) In parliamentary and some other systems of government, the group of ministers responsible for creating government policy and for overseeing the departments comprising the executive branch.

(archaic) A small chamber or private room.

* Prescott

Philip passed some hours every day in his father's cabinet.

(often capitalized) A collection of art or ethnographic objects.

(dialectal, Rhode Island) Milkshake.

(obsolete) A hut; a cottage; a small house.

* Spenser

Hearken a while from thy green cabinet , / The rural song of careful Colinet.