official use
official use 〈英〉法定用益;官方用益 一种积极用益,即地产的普通法所有权人或用益受封人〔feoffee to uses〕负有积极用益土地的义务。
Hist. A use imposing a duty on a person holding legal title to an estate on behalf of another, such as a requirement that a feoffee to uses sell the estate and apportion the proceeds among several beneficiaries. • The Statute of Uses eliminated this type of use.