Collocations for Easter - noun

early, late
Easter is early this year.

have, spend
Have a good Easter.
I prefer to spend Easter at home.

celebrate

egg
celebrations, festival, holiday, season (AmE)
Day, Monday (esp. BrE), morning, Saturday (esp. BrE), Sunday, week, weekend
dinner (AmE)
service
Many people attend an Easter service at their local church.

story
the Easter story in the Bible

break (esp. BrE), holidays (BrE), vacation
bunny
basket (esp. AmE)

at Easter
The house opens to the public at Easter.

for Easter
We usually go away for Easter.

over Easter
The library is closed over Easter.

Happy Easter!, wish sb a happy Easter