Used (chiefly informally) to mean ‘to record in a diary’ or ‘to schedule in a diary’.
Definitions
To write or record personal experiences or events in a diary. She tries to diary every evening before bed.
To enter or schedule (an event) in a diary or planner. He diaried the appointment for next Monday.
Used attributively before another noun (e.g., "diary entry"). Not normally gradable.
Definitions
Relating to or intended for use in keeping a diary. I opened my diary app to jot down a note.