1. a special enjoyable event that people organize because something pleasant has happened or because it is someone’s birthday, anniversary, etc.
2. the action of celebrating something

Examples

• We’re having a celebration for my grandmother’s 80th birthday.
• The town held a celebration to mark the end of the war.
• Their wedding celebration lasted three days.
• The celebration of Independence Day includes fireworks and parades.
• The team’s victory called for a proper celebration.
• The celebration of her achievements brought tears to her eyes.
• New Year’s Eve is always a time of celebration around the world.