(Christianity) An anthem formerly sung as part of the Roman Catholic Mass or during the corresponding part of the Anglican Communion.

The postal facility that deals with mail that cannot be delivered.

(law) A crime the elements of which coincide with the elements of a more serious crime, from which the prosecutor is therefore precluded from separately charging a criminal defendant.

(law) A person who voluntarily, and without request or pre-existing legal duty, interjects himself/herself into the affairs of another, then seeks remuneration for services or reimbursement.

A religious sacrifice. / An offering or concession made to an adversary in the hope of obtaining peace or reconciliation; an olive branch.

A reduction in carbon dioxide emission by a third party purchased by a heavy carbon dioxide producer as part of carbon emissions trading.

(Britain, UK politics) The British government department, headed by the Home Secretary, responsible for internal affairs in England and Wales.

The headquarters of an organization. / A room, in a person's home, equipped as an office so that the person may work from home.

(soccer) A defensive play to catch the attacking side offside

A voluntary, unpaid officer of an organization.