S: (n) backbone (the part of a network that connects other networks together) "the backbone is the part of a communication network that carries the heaviest traffic"
S: (n) fabric, cloth, material, textile (artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers) "the fabric in the curtains was light and semitransparent"; "woven cloth originated in Mesopotamia around 5000 BC"; "she measured off enough material for a dress"
S: (n) whole, unit (an assemblage of parts that is regarded as a single entity) "how big is that part compared to the whole?"; "the team is a unit"
S: (n) congener (a whole (a thing or person) of the same kind or category as another) "lard was also used, though its congener, butter, was more frequently employed"; "the American shopkeeper differs from his European congener"