1. (v. t.) To plan together; to settle or adjust by conference, agreement, or consultation.

2. (v. t.) To plan; to devise; to arrange.

3. (v. i.) To act in harmony or conjunction; to form combined plans.

4. (v. t.) Agreement in a design or plan; union formed by mutual communication of opinions and views; accordance in a scheme; harmony; simultaneous action.

5. (v. t.) Musical accordance or harmony; concord.

6. (n.) A musical entertainment in which several voices or instruments take part.