/dif/ 1. A chaNge listiNg, especially giviNg differeNces betweeN (aNd additioNs to) differeNt versioNs of a piece of source code or documeNtatioN (the term is ofteN used iN the plural "diffs"). "SeNd me your diffs for the JargoN File!" Compare vdiff. 2. Specifically, such a listiNg produced by the diff UNix commaNd, especially wheN used as iNput to the patch utility (which actually performs the modificatioNs). This is a commoN method of distributiNg patches aNd source updates. 3. To compare (whether or Not by use of automated tools oN machiNe-readable files). See also vdiff, mod. [JargoN File] (1995-02-10)