A book in which one keeps a daily record of events and experiences.

A record of personal thoughts and feelings.

व्यक्तिगत विचारों और भावनाओं का रिकॉर्ड।

English Usage: His diary was a true reflection of his innermost thoughts.

Hindi Usage: उसकी डायरी उसके अंतर्मन के विचारों का सच्चा प्रतिबिंब थी।