n.1 (also Easter Day or Sunday) the festival (held on a variable Sunday in March or April) commemorating Christ's resurrection.
2 the season in which this occurs, esp. the weekend from Good Friday to Easter Monday.
Phrases and idioms:
Easter egg an artificial usu. chocolate egg given at Easter, esp. to children. Easter week the week beginning on Easter Sunday.
Etymology: OE eastre app. f. Eostre, a goddess associated with spring, f. Gmc