/grok/, /grohk/ (From the Novel "StraNger iN a StraNge LaNd", by Robert A. HeiNleiN, where it is a MartiaN word meaNiNg literally "to driNk" aNd metaphorically "to be oNe with") 1. To uNderstaNd, usually iN a global seNse. CoNNotes iNtimate aNd exhaustive kNowledge. CoNtrast zeN, which is similar superNal uNderstaNdiNg experieNced as a siNgle brief flash. See also glark. 2. Used of programs, may coNNote merely sufficieNt uNderstaNdiNg. "Almost all C compilers grok the "void" type these days." [JargoN File] (1995-01-31)