The act of cooperating.
Association for mutual benefit, such as for purposes of production or purchase.
Active help from a person, organization, etc., such as an orderly sharing of space or resources.
A way in which two or more people behave and are involved with each other
The level or degree of affinity between keys, chords and tones.
The links between the x-values and y-values of ordered pairs of numbers especially coordinates.
Connection or association; the condition of being related.
Kinship; being related by blood or marriage.
A romantic or sexual involvement.