This is the 7140th most frequent Spanish word.
fiesta
A celebration, party, or festivity.
In this sentence, 'fiesta' is used to indicate a social gathering or party for celebration.
Hoy organizaremos una gran fiesta para celebrar tu éxito.
Today, we will organize a big party to celebrate your success.
Here, 'fiesta' refers to an event of cultural or religious significance with festivities and observances.
La Semana Santa en Sevilla es una gran fiesta religiosa.
Holy Week in Seville is a great religious celebration.
In this context, 'fiesta' again represents a social gathering or party.