A place of employment in which newly hired workers must join the union representing the workers within a certain period of time, typically 30 days.

(physics) A unit of measurement that can be defined in terms of mass, length, and time.

(slang, UK, Australia, chiefly Internet, humorous) An exceptionally large or stout person. / (by extension) Anything exceptionally large for its type.

(slang, humorous) A virgin.

(topology) A space for which properties like uniform continuity and uniform convergence can be formulated.

(mathematics) A union of sets forced to be disjoint by attaching information referring to the original sets to their elements (i.e., by using indexing).

plural of unique factorization domain

(law) Abbreviation of university.

(Oxford University) Abbreviation of University College, Oxford.

A day fine.