The second-story men silently climbed the fire escape and pried open the bedroom window.

The police set a trap to catch the second-story man who had been slipping in through the townhouse windows.

At the family reunion, I finally met my second cousin once removed.

Researchers often use monadic second-order logic, a formal deductive system that extends first-order logic by enabling quantification over unary predicates, to express graph properties that are inexpressible in first-order logic.

The petty officer second class supervised the new recruits during their seamanship training.

During the night patrol, three petty officers second class inspected the perimeter and reported back to the captain.

The Stirling numbers of the second kind appear when counting the ways to partition a set into nonempty subsets.

When counting the partitions of a five-element set into two nonempty subsets, we compute the Stirling number of the second kind S(5,2).

Music historians often point to the Second New England School as a pivotal force in shaping American concert music at the turn of the twentieth century.

At the family reunion, my second cousins once removed arrived from across the country, bringing stories about our shared great-grandparents.