almanac

UK: /ˈɔːlmənæk/ US: /ˈɔlməˌnæk/ ,(ôl′mə nak′)

WordReference Random House Learner's Dictionary of American English © 2025

al•ma•nac /ˈɔlməˌnæk/   n. [countable]

1. an annual publication containing a calendar for the coming year, important dates, and the times of such phenomena as sunrises and sunsets.

WordReference Random House Unabridged Dictionary of American English © 2025

al•ma•nac  (ôl′mə nak′), n. 

1. an annual publication containing a calendar for the coming year, the times of such events and phenomena as anniversaries, sunrises and sunsets, phases of the moon, tides, etc., and other statistical information and related topics.
2. a publication containing astronomical or meteorological information, usually including future positions of celestial objects, star magnitudes, and culmination dates of constellations.
3. an annual reference book of useful and interesting facts relating to countries of the world, sports, entertainment, etc.

• ?
• Spanish Arabic al the + manākh calendar
• Medieval Latin almanach
• Middle English almenak 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

almanac / ˈɔːlməˌnæk/ noun

1. a yearly calendar giving statistical information on events and phenomena, such as the phases of the moon, times of sunrise and sunset, tides, anniversaries, etc
   Also (archaic): almanack

Etymology: 14th Century: from Medieval Latin almanachus, perhaps from Late Greek almenikhiaka