to do something to show that (a day or an invent) is important or an occasion for rejoicing

commemorate occasion, achievement

to receive (a person) as a guest; give food and drink to (a person)

amuse

to be very pleased because of (success)

be joyful

to feel or show great joy or happiness

be very happy about something

to make (a person) pleased; to be enough for (one's needs); to make (a person) free from doubt

please, content