journal

journal
jour‧nal AC /ˈdʒɜːnl $ -ɜːr-/ noun [countable]1. a serious magazine produced for professional people or those with a particular interest:
    the British Medical Journal
2. a written record that you make of the things that happen to you each day
   SYN  diary:
    He decided to keep a journal.
     

THESAURUS

   ▪ diary a book in which you write down the things that happen to you each day, and your private thoughts: I decided to keep a diary of our trip to Toronto. | You shouldn’t read anyone’s private diary. | On February 3rd, he wrote the last entry in his diary.
   ▪ journal a diary, especially one written by a famous or important person: In the 1837 journal, Darwin gives an account of his voyage to South America. | Her book draws on letters, diaries, journals and historical sources.
   ▪ memoirs a written record of the important events and people in your life which you write in order to publish – especially one that is written by a famous or important person such as a politician or a military leader: A lot of politicians think about writing their memoirs. | The book was titled ‘The Memoirs of a President’.
   ▪ blog a diary that someone puts on a website, which is a record of their activities, experiences, and opinions, with the latest information always at the top. On some blogs, readers can leave comments: I try to keep a regular online blog. | I came across a great post on a blog I read recently.
   ▪ log/log book an official record of events, especially on a journey in a ship or plane: the ship’s log | The captain had made a few notes in the log book.