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) subject, content, depicted object (something (a person or object or scene) selected by an artist or photographer for graphic representation) "a moving picture of a train is more dramatic than a still picture of the same subject"
S: (n) body of water, water (the part of the earth's surface covered with water (such as a river or lake or ocean)) "they invaded our territorial waters"; "they were sitting by the water's edge"
S: (n) necessity, essential, requirement, requisite, necessary (anything indispensable) "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"
S: (n) part, piece (a portion of a natural object) "they analyzed the river into three parts"; "he needed a piece of granite"
S: (n) reservoir, source (anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies) "an infectious agent depends on a reservoir for its survival"
S: (n) unit, building block (a single undivided natural thing occurring in the composition of something else) "units of nucleic acids"
S: (n) variable (something that is likely to vary; something that is subject to variation) "the weather is one variable to be considered"
S: (n) matter (that which has mass and occupies space) "physicists study both the nature of matter and the forces which govern it"
S: (n) process, physical process (a sustained phenomenon or one marked by gradual changes through a series of states) "events now in process"; "the process of calcification begins later for boys than for girls"
S: (n) substance (material of a particular kind or constitution) "the immune response recognizes invading substances"
S: (n) object, physical object (a tangible and visible entity; an entity that can cast a shadow) "it was full of rackets, balls and other objects"
S: (n) matter (that which has mass and occupies space) "physicists study both the nature of matter and the forces which govern it"
S: (n) process, physical process (a sustained phenomenon or one marked by gradual changes through a series of states) "events now in process"; "the process of calcification begins later for boys than for girls"