Journal

a written medium, for instance:
 an academic journal
 a diary 
 a literary magazine, a periodical devoted to literature
 a daily newspaper
 a scientific journal
 Journal (mechanical device), the section of a rotating shaft that contacts and turns in a plain bearing
 Mining journal, a record systematically describing the strata through which a mine shaft passes (see shaft mining)
 Journal entry, an accounting transaction in the double-entry bookkeeping system