There are multiple definitions - click on the translation that matches your context.

parte

substantivo

full

party

noun

Comparative law notes

Portugal

Translation tip: note that the preposition that must follow the term party is TO, not OF. E.g. No party to an arbitration proceeding may reveal the existence, content or results of the arbitration to a third party.

Definitions of party

English

a person involved in a suit, dispute resolution proceedings or (less commonly) a prosecution

This version of events is clearly designed to cast Mr Mendelsohn as the innocent party.

English

a person taking part in a business transaction, negotiating a contract, bound by a contract etc

It was in the best interests of both parties to terminate the contract.