diary Meaning, Definition & Usage

  1. noun a daily written record of (usually personal) experiences and observations
    journal.
  2. noun a personal journal (as a physical object)

WordNet

Di"a*ry noun
Etymology
L. diarium, fr. dies day. See Deity.
Wordforms
plural Diaries
Definitions
  1. A register of daily events or transactions; a daily record; a journal; a blank book dated for the record of daily memoranda; as, a diary of the weather; a physician's diary.
Di"a*ry adjective
Definitions
  1. lasting for one day; as, a diary fever. Obs. "Diary ague." Bacon.

Webster 1913