(law, archaic) The party to a legal dispute who first raised a complaint in a court. / (law, archaic) The first party named in a contract, generally the party agreeing to perform a duty thereunder.

(law) A derivative lawsuit brought by a defendant in an original lawsuit, claiming that another new party being brought in is responsible for or should share in the plaintiff's damages against the defendant.

The ability (or the difficulty) of focusing one's attention on a single auditory source in a jumble of noises.

(mathematics) A graph consisting of two rows of paired nodes in which all nodes except the paired ones are connected with straight lines; it is the complement of the ladder graph, and the dual graph of the hypercube.

A company that is contracted, by a bank etc., to conduct some part of a financial transaction process; especially a company that provides software or hardware for such a process

(idiomatic) A party to celebrate when a person decides to leave a house or flat, and sometimes to help prepare the space for the incoming residents.

A Canadian social-democratic political party which fields candidates in both federal and provincial elections.

The ruling political party of the People's Republic of China.

(Singapore, derogatory) An Asian girl who dates a non-Asian, especially a white expatriate.

A chef in charge of a particular area of production in the kitchen, such as fish or roast meats.