To plan; to devise; to arrange.
To act in harmony or conjunction; to form combined plans.
To plan together; to settle or adjust by conference, agreement, or consultation.
A musical entertainment in which several voices or instruments take part.
Agreement in a design or plan; union formed by mutual communication of opinions and views; accordance in a scheme; harmony; simultaneous action.
Musical accordance or harmony; concord.
To sort or arrange beforehand.
To order (goods or services) in advance, before they are available.
A binary relation that is reflexive and transitive.
An order for goods or services placed in advance.
Such that, recursively, the root is visited before the left and right subtrees.