Party

Feier

(social gathering)

Fest

(social gathering)

Fete

(social gathering)

Partei

(law: particular side in a contract or legal action)

Partei

(group of people forming one side in a given dispute, contest etc.)

Partie

(group of people travelling or attending an event together)

Partizipant

(someone who takes part)

Party

(social gathering)

Party

(online gaming: player characters organized into a single group)

Party

(video games: group of characters controlled by the player)

Teilnehmer

(someone who takes part)

Teilnehmerin

(someone who takes part)