Of objects, the property of being coincident; occurring at the same time or place.
A coincidence point.
A fixed point of a correspondence; a point of a variety corresponding to itself under a correspondence.
Of events, the appearance of a meaningful connection when there is none.
The quality or state of being simultaneous; simultaneousness.
More than one complete musical texture occurring at the same time. This first appeared in the music of Charles Ives, and is common in the music of Conlon Nancarrow, and others.