The politicians were divided along party lines.

Particle accelerators are used in scientific research to study the properties of particles.

Partial ordering relations are used to represent a partial order between elements.

Partially ordered sets are widely used in mathematics.

Partial orders are used in mathematics to represent a relation between elements of a set.

The Democratic Party is a major party in the United States.

The partial charges on the atoms determine the polarity of the molecule.

The party walls in the building were reinforced for added stability.

The party wall separates the two houses.

Partial-birth abortion is a controversial medical procedure.