legal-size \ˈ ̷ ̷ ̷ ̷| ̷ ̷\adjective orlegal-sized\| ̷ ̷ ̷ ̷| ̷ ̷\ 1.: of a size conforming to standards set by law < the river is stocked with legal-size trout — E.W.Smith > 2.: of a size commonly used in the work of the legal profession < a legal-size filing cabinet > < legal-sized paper >