- Noun. (Christianity) A Christian feast commemorating the resurrection of Christ; the first Sunday following the full moon that occurs on or next after the vernal equinox, neither eariler than March 22 nor later than April 25.
- Noun. Eastertide.
- Noun. (obsolete) The Jewish passover.
- Noun. (context, paganism) A festival held in honour of the goddess Eostre or Ostara and celebrated at the spring equinox or within the month of April. Also known as Eostre.
- Adjective. (obsolete) Eastern.