di·a·ry 
/ˈdajəri/ noun
plural di·a·ries /ˈdajəri/ noun [count] 1 : a book in which you write down your personal experiences and thoughts each day
▪ His diaries [=journals] were published after his death. ▪ She kept a diary [=wrote regularly in her diary] while she was traveling in Europe. 2 Brit : datebook
▪ His diaries [=journals] were published after his death. ▪ She kept a diary [=wrote regularly in her diary] while she was traveling in Europe.
