(astronomy) The observation that the night sky is mostly dark, yet, in a boundless universe of stars, every line of sight from the eye must eventually intercept the surface of a star.

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 party at which cocktails are served.

(colloquial, derogatory) A college, university, or any institution of higher learning in which there exists a culture of ribaldry and licentiousness amongst the student population.

Someone suffering from paralysis. / A drug that produces paralysis.

Affected by paralysis; paralysed. / Pertaining to paralysis. / (UK, Australia, Ireland, slang) Very drunk.

The bride and groom as well as the bridesmaids and groomsmen at a wedding.

(dated) A list of the most popular songs at the moment. / (baseball) Many hits in a row scored by one team.

(US) A business establishment for the placing of wagers on athletic competitions and horse or dog races.