noun

1. a daily record of happenings, as a diary
2. a record of the transactions of a legislature, club, etc.
3. a daily newspaper: often used in newspaper titles
4. any newspaper or periodical, as one dealing with scientific or professional matters
5. Bookkeeping
   1. daybook
   2. a book of original entry, used in the double-entry system, for recording all transactions, in the order in which they occur, with an indication of the special accounts to which they belong

6. Etymology: orig. Scot

   Mech. the part of a rotary axle or shaft that turns in a bearing

Etymology: ME, book containing forms of worship for the day hours (Little Hours) < OFr, lit., daily < L diurnalis < dies, day (see deity): journalsense prob. via It giornale, of same orig.