Celebrare vs. festeggiare

The Italian verbs 'celebrare' and 'festeggiare' both mean 'to celebrate' in English, but they have subtle differences in usage and connotation.

Celebrare

'Celebrare' is often used for more formal or solemn celebrations, particularly those with religious, ceremonial, or official significance.
Il prete celebra la messa ogni domenica.
(The priest celebrates mass every Sunday.)
Celebriamo l'anniversario della fondazione della nostra azienda.
(We're celebrating the anniversary of our company's founding.)
La nazione celebra la festa dell'indipendenza.
(The nation celebrates Independence Day.)

Festeggiare

'Festeggiare' is typically used for more joyful, informal celebrations, often involving parties or gatherings with friends and family.
Festeggiamo il tuo compleanno con una cena tra amici.
(We're celebrating your birthday with a dinner among friends.)
I tifosi festeggiano la vittoria della loro squadra.
(The fans are celebrating their team's victory.)
Stasera festeggiamo la promozione di Maria.
(Tonight we're celebrating Maria's promotion.)

Summary

While both 'celebrare' and 'festeggiare' mean 'to celebrate', 'celebrare' is generally used for more formal or solemn occasions, often with religious or official significance. 'Festeggiare' is typically used for more casual, joyful celebrations with friends and family. However, in some contexts, these words can be used interchangeably, especially for significant life events like weddings or graduations.