
die Geburtstagsfeier
birthday party
A celebration or party held for someone's birthday.
Wir organisieren für Oma eine große Geburtstagsfeier mit der ganzen Familie.
We're organizing a big birthday party for Grandma with the whole family.
birthday party
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birthday party
A celebration or party held for someone's birthday.
Wir organisieren für Oma eine große Geburtstagsfeier mit der ganzen Familie.
We're organizing a big birthday party for Grandma with the whole family.
The word consists of 'Geburtstag' (birthday) and 'Feier' (celebration/party). 'Geburtstag' itself is made up of 'Geburt' (birth) and 'Tag' (day). A 'Geburtstagsfeier' is therefore literally a celebration for a birthday.
Die Kinder freuen sich schon wochenlang auf die Geburtstagsfeier.
The children look forward to the birthday party for weeks.
When holding a birthday party, you often use the verbs 'organisieren' (to organize), 'planen' (to plan), or colloquially also 'geben' (to have/throw) or 'schmeißen' (to throw).
Meine Freunde schmeißen für mich eine große Geburtstagsfeier.
My friends are throwing a big birthday party for me.
Pay attention to the prepositions: you invite someone 'zu' einer Feier (to a party) and go 'zu' einer Feier (to a party). If you are already there, you are 'auf' der Feier (at the party).
Kommst du am Samstag zu meiner Geburtstagsfeier?
Are you coming to my birthday party on Saturday?
birthday
Both words can refer to celebrating someone. „Geburtstag“ refers to the anniversary and can also be used as a shortened reference to the celebration, while „Geburtstagsfeier“ explicitly means the event. Use „Geburtstag“ for the occasion and „Geburtstagsfeier“ when you mean the specific celebration.

Morgen findet meine Geburtstagsfeier mit der ganzen Familie statt.
My birthday party is taking place tomorrow with the whole family.
Morgen ist mein Geburtstag, deshalb lade ich meine Familie ein.
Tomorrow is my birthday, so I’m inviting my family.