The cardinal number immediately following forty-three and preceding forty-five.

(slang) A .44 Magnum handgun

Forty plus two; the cardinal number following forty-one and preceding forty-three.

The cardinal number immediately following forty-eight and preceding fifty.

The cardinal number immediately following forty-two and preceding forty-four.

The cardinal number immediately following forty-six and preceding forty-eight.

The cardinal number immediately following forty and preceding forty-two.

The cardinal number immediately following forty-five and preceding forty-seven.

The cardinal number immediately following forty-seven and preceding forty-nine.

(US, military) A period of 48 hours' leave, i.e. two days.