S: (n) alloy, metal (a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten) "brass is an alloy of zinc and copper"
S: (n) mixture ((chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding))
S: (n) substance (the real physical matter of which a person or thing consists) "DNA is the substance of our genes"
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) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
S: (n) part, portion, component part, component, constituent (something determined in relation to something that includes it) "he wanted to feel a part of something bigger than himself"; "I read a portion of the manuscript"; "the smaller component is hard to reach"; "the animal constituent of plankton"
S: (n) relation (an abstraction belonging to or characteristic of two entities or parts together)