(baseball) The sign made by the manager directing the pitcher to issue an intentional walk.

(informal) The Beatles.

measuring two inches by four inches / (by extension) small or cramped

(construction) A length of lumber having a cross section of two inches by four inches, or in the case of dimensional lumber three and a half inches by one and a half inches.

A sport played by four players where players have to hit a ball into other people's squares, and attempt to make a return hit.

(motor vehicles) A four-speed manual transmission whose gearshift lever is mounted beside the driver on the floor of the vehicle.

Of a plant, having four leaves.

plural of four by two

(informal, humorous, figuratively) A notional weapon used to knock sense into the clueless.

(US, slang) To win something four times consecutively.