Macnaha qaamuuska ee ereyga "is-gaarsiin" waa in la is-gaarsiiyo ama la is dhaafsado xog, fikrado, ama fikrado u dhexeeya laba ama in ka badan oo qof, kooxo, ama ururo, gaar ahaan kuwa ka tirsan meelo, dhaqamo, ama goobo kala duwan. Waxay kaloo tixraaci kartaa awoodda gudbinta ama helidda fariimaha, calaamadaha, ama xogta u dhaxaysa aaladaha ama nidaamyada kala duwan. Eraygu waxa uu tusinayaa isgaadhsiin laba dhinac ah ama isdhaafsi, halkaas oo labada dhinacba ay si firfircoon ugu hawlan yihiin habka wadaagista iyo fahamka macluumaadka.