Easter

Pronunciation: /ˈiːstə/

The English word “Easter” has 7 meanings listed here.

noun

A Christian feast commemorating the resurrection of Jesus Christ. It is celebrated on the first Sunday (and Monday) following the full moon that occurs on or next after the vernal equinox, ranging in most of Western Christianity (such as Protestantism and Roman Catholicism) from March 22 to April 25, and in Eastern Christianity (such as the Coptic Church and Eastern Orthodox Church) from April 4…
Eastertide (“the period from Easter to Whitsun”).
Usually preceded by an inflection of make: the act of receiving the Eucharist during Easter.
A festival held in honour of the goddess Eostre or Ostara, celebrated at the vernal equinox or within the month of April; Eostre, Ostara.
The Jewish Passover.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.