(physics) A pair of electrons (or other fermions), of opposite spin, whose theorised behaviour is the basis of the BCS theory of superconductivity.

One who sets the pace in a race, to guide the others. / (anatomy) A set of nerves which stimulate the heart to beat.

An amusement park that has one or more specific central themes, often as part of its name

The delivery of newspapers to individual subscribers' houses.

The particular green party of a country or region.

The surface or structure from which a launch is made. / (figuratively) A starting point.

(law) The party in a civil lawsuit whom the factfinder determines to be right, and who, in some jurisdictions, may recover attorney's fees and other expenses associated with the prosecution or defense of the lawsuit.

(physics) Any particle, especially a subatomic particle, that carries an electric charge. / (chemistry) An ion.

(law, archaic) The party to a legal dispute against whom a complaint was initially raised in a court.

(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.