extended extensive “Extended” has to do with time, “extensive” with space. An extended tour lasts a long time; an extensive tour covers a lot of territory. Facebook Twitter Google + Do you make these 10 mistakes? grammer vs grammar intergrate vs integrate all for not vs all for naught swam vs swum little own vs let alone resign vs re-sign woman vs women phantom vs fathom warmongerer vs warmonger basicly vs basically