variable quantity, variable - a quantity that can assume any of a set of values

correlate - bring into a mutual, complementary, or reciprocal relation; "I cannot correlate these two pieces of information"

correspond, gibe, jibe, match, tally, agree, fit, check - be compatible, similar or consistent; coincide in their characteristics; "The two stories don't agree in many details"; "The handwriting checks with the signature on the check"; "The suspect's fingerprints don't match those on the gun"

associate, colligate, link, relate, tie in, connect, link up - make a logical or causal connection; "I cannot connect these two pieces of evidence in my mind"; "colligate these facts"; "I cannot relate these events at all"

correlate - to bear a reciprocal or mutual relation; "Do these facts correlate?"

related, related to - being connected or associated; "painting and the related arts"; "school-related activities"; "related to micelle formation is the...ability of detergent actives to congregate at oil-water interfaces"