(idiomatic) Privy to; having knowledge of.

(law) A person or group of people constituting a particular side in a contract or legal action. / (slang, dated) A person; an individual. / With to: an accessory, someone who takes part.

Of a fence or wall: shared by two properties and serving to divide them. / (obsolete, except in compounds) Divided; in part.

(intransitive) To celebrate at a party, to have fun, to enjoy oneself. / (intransitive, slang, euphemistic) To take recreational drugs.

present participle of party

(neologism, derogatory) The Republican Party of the United States.

(Internet, historical) An informal private party held as part of a convention, giving Internet users the chance to meet in person.

(cryptography) Synonym of Alice (“placeholder”)

(law) An award granted by a court in a legal proceeding to one party requiring another party to pay an amount of the first party's legal costs, excluding lawyer fees.

simple past tense and past participle of party