v To plan together; to settle or adjust by conference, agreement, or consultation.
v To plan; to devise; to arrange.
v To act in harmony or conjunction; to form combined plans.
n (uncountable) Agreement in a design or plan; union formed by mutual communication of opinions and views; accordance in a scheme; harmony; simultaneous action.
n (uncountable) Musical accordance or harmony; concord.
n (countable) A musical entertainment in which several voices or instruments take part.